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    <title>Cmd Markdown 公式指导手册 - 作业部落 Cmd Markdown 编辑阅读器</title>


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        <span>
            <code>@codeep</code>
        </span>
        <code><span class="article-updated-date">2020-10-03 03:54</span></code>
        <code><span>字数 </span><span class="article-characters">31437</span></code>
        <code><span>阅读 </span><span class="article-read">205281</span></code>
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    <div id="wmd-preview" class="wmd-preview wmd-preview-full-reader" data-medium-element="true" style="left: 0px;"><div class="md-section-divider"></div><hr><p data-anchor-id="o91w"><span style="float: left; display: contents;"><i class="icon-download-alt icon-1x"></i> Markdown 源文件下载 / <a href="https://pan.ericp.cn/s/e2t71pve" target="_blank">Ver. 2020-01-11</a> / <a href="https://pan.ericp.cn/s/dibsb6nz" target="_blank">Ver. 2020-09-27</a></span><span style="float: right; display: block;">本文固定链接 <a href="https://ericp.cn/cmd" target="_blank">https://ericp.cn/cmd</a></span></p><div class="md-section-divider"></div><h1 data-anchor-id="id36" id="cmd-markdown-公式指导手册">Cmd Markdown 公式指导手册</h1><p style="margin-top: 100px" data-anchor-id="e3ck"> </p><ul data-anchor-id="rgja">
<li>新增内容：<a href="#7戴帽符号">戴帽符号</a></li>
<li>修补内容：<a href="#1如何输入一个交换图表">如何输入一个交换图表</a> / <a href="#3在字符间加入空格">在字符间加入空格</a><span style="float: right; display: block;"><i class="icon-edit icon-1x"></i> Ver. 2020-10-03</span></li>
</ul><hr><blockquote data-anchor-id="i1w8" class="white-blockquote">
  <p>本文为 MathJax 在 <a href="https://www.zybuluo.com/mdeditor?url=https://www.zybuluo.com/static/editor/md-help.markdown" target="_blank">Cmd Markdown</a> 环境下的常用语法指引。Cmd Markdown 编辑阅读器支持 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-1-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 6.486ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0472474587792 2783.683639280504 973.3759328068037"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4C"></use><g transform="translate(356,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-41" x="0" y="296"></use></g><use xlink:href="#MJMATHI-54" x="717" y="0"></use><g transform="translate(1281,0)"><use xlink:href="#MJMATHI-45" x="0" y="-216"></use></g><use xlink:href="#MJMATHI-58" x="1931" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-1">\LaTeX</script> 编辑显示支持，例如：<span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-2-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.046ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -811.9875111244761 5180.22258115972 1126.8798169060667"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2211"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="1494" y="675"></use><g transform="translate(1056,-287)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="345" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1124" y="0"></use></g><g transform="translate(2471,0)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69" x="748" y="-213"></use></g><use xlink:href="#MJMAIN-3D" x="3623" y="0"></use><use xlink:href="#MJMAIN-30" x="4679" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-2">\sum_{i=1}^n a_i=0</script>，访问 <a href="http://meta.math.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference" target="_blank">MathJax</a> 以参考更多使用方法。</p>
  
  <p>右键点击每一个公式，选择 <strong>[Show Math As] → [TeX Commands]</strong> 以查看该公式的命令详情。</p>
</blockquote><p data-anchor-id="j8i3"></p><div class="toc"><div class="toc">
<ul>
<li><a href="#cmd-markdown-公式指导手册">Cmd Markdown 公式指导手册</a></li>
<li><a href="#一公式使用参考">一、公式使用参考</a><ul>
<li><a href="#1如何插入公式">1．如何插入公式</a></li>
<li><a href="#2如何输入上下标">2．如何输入上下标</a></li>
<li><a href="#3如何输入括号和分隔符">3．如何输入括号和分隔符</a></li>
<li><a href="#4如何输入分数">4．如何输入分数</a></li>
<li><a href="#5如何输入开方">5．如何输入开方</a></li>
<li><a href="#6如何输入省略号">6．如何输入省略号</a></li>
<li><a href="#7如何输入向量">7．如何输入向量</a></li>
<li><a href="#8如何输入积分">8．如何输入积分</a></li>
<li><a href="#9如何输入极限运算">9．如何输入极限运算</a></li>
<li><a href="#10如何输入累加累乘运算">10．如何输入累加、累乘运算</a></li>
<li><a href="#11如何输入希腊字母">11．如何输入希腊字母</a></li>
<li><a href="#12如何输入其它特殊字符">12．如何输入其它特殊字符</a><ul>
<li><a href="#1关系运算符">(1)．关系运算符</a></li>
<li><a href="#2集合运算符">(2)．集合运算符</a></li>
<li><a href="#3对数运算符">(3)．对数运算符</a></li>
<li><a href="#4三角运算符">(4)．三角运算符</a></li>
<li><a href="#5微积分运算符">(5)．微积分运算符</a></li>
<li><a href="#6逻辑运算符">(6)．逻辑运算符</a></li>
<li><a href="#7戴帽符号">(7)．戴帽符号</a></li>
<li><a href="#8连线符号">(8)．连线符号</a></li>
<li><a href="#9箭头符号">(9)．箭头符号</a></li>
</ul>
</li>
<li><a href="#13如何进行字体转换">13．如何进行字体转换</a></li>
<li><a href="#14如何高亮一行公式">14．如何高亮一行公式</a></li>
<li><a href="#15大括号和行标的使用">15．大括号和行标的使用</a></li>
<li><a href="#16其它命令">16．其它命令</a><ul>
<li><a href="#1定义新的运算符-operatorname">(1)．定义新的运算符 \operatorname</a></li>
<li><a href="#2添加注释文字-text">(2)．添加注释文字 \text</a></li>
<li><a href="#3在字符间加入空格">(3)．在字符间加入空格</a></li>
<li><a href="#4更改文字颜色-color">(4)．更改文字颜色 \color</a></li>
<li><a href="#5添加删除线">(5)．添加删除线</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#二矩阵使用参考">二、矩阵使用参考</a><ul>
<li><a href="#1如何输入无框矩阵">1．如何输入无框矩阵</a></li>
<li><a href="#2如何输入边框矩阵">2．如何输入边框矩阵</a></li>
<li><a href="#3如何输入带省略符号的矩阵">3．如何输入带省略符号的矩阵</a></li>
<li><a href="#4如何输入带分割符号的矩阵">4．如何输入带分割符号的矩阵</a></li>
<li><a href="#5如何输入行中矩阵">5．如何输入行中矩阵</a></li>
</ul>
</li>
<li><a href="#三方程式序列使用参考">三、方程式序列使用参考</a><ul>
<li><a href="#1如何输入一个方程式序列">1．如何输入一个方程式序列</a></li>
<li><a href="#2在一个方程式序列的每一行中注明原因">2．在一个方程式序列的每一行中注明原因</a></li>
</ul>
</li>
<li><a href="#四条件表达式使用参考">四、条件表达式使用参考</a><ul>
<li><a href="#1如何输入一个条件表达式">1．如何输入一个条件表达式</a></li>
<li><a href="#2如何输入一个左侧对齐的条件表达式">2．如何输入一个左侧对齐的条件表达式</a></li>
<li><a href="#3如何使条件表达式适配行高">3．如何使条件表达式适配行高</a></li>
</ul>
</li>
<li><a href="#五数组与表格使用参考">五、数组与表格使用参考</a><ul>
<li><a href="#1如何输入一个数组或表格">1．如何输入一个数组或表格</a></li>
<li><a href="#2如何输入一个嵌套的数组或表格">2．如何输入一个嵌套的数组或表格</a></li>
<li><a href="#3如何输入一个方程组">3．如何输入一个方程组</a></li>
</ul>
</li>
<li><a href="#六连分数使用参考">六、连分数使用参考</a><ul>
<li><a href="#1如何输入一个连分式">1．如何输入一个连分式</a></li>
</ul>
</li>
<li><a href="#七交换图表使用参考">七、交换图表使用参考</a><ul>
<li><a href="#1如何输入一个交换图表">1．如何输入一个交换图表</a></li>
</ul>
</li>
<li><a href="#八一些特殊的注意事项">八、一些特殊的注意事项</a></li>
</ul>
</div>
</div>
<p></p><hr><div class="md-section-divider"></div><h1 data-anchor-id="dsa2" id="一公式使用参考">一、公式使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="1v0z" id="1如何插入公式">1．如何插入公式</h2><p data-anchor-id="ngsx"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-3-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 6.486ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0472474587792 2783.683639280504 973.3759328068037"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4C"></use><g transform="translate(356,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-41" x="0" y="296"></use></g><use xlink:href="#MJMATHI-54" x="717" y="0"></use><g transform="translate(1281,0)"><use xlink:href="#MJMATHI-45" x="0" y="-216"></use></g><use xlink:href="#MJMATHI-58" x="1931" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-3">\LaTeX</script> 的数学公式有两种：行中公式和独立公式。行中公式放在文中与其它文字混编，独立公式单独成行。</p><dl data-anchor-id="gjw7">
<dt>行中公式可以用如下方法表示：</dt>
<dd>
<pre><code> $ 数学公式 $
</code></pre>
</dd>

<dt>独立公式可以用如下方法表示：</dt>
<dd>
<pre><code> $$ 数学公式 $$
</code></pre>
</dd>

<dt>自动编号的公式可以用如下方法表示：</dt>
<dd>若需要手动编号，参见“<a href="#14大括号和行标的使用">大括号和行标的使用</a>”。</dd>

<dd>
<pre><code>\begin{equation}
    数学公式
    \label{eq:当前公式名}
\end{equation}
</code></pre>
</dd>
</dl><p data-anchor-id="vlpk"><strong>自动编号后的公式可在全文任意处使用 <code>\eqref{eq:公式名}</code> 语句引用。</strong></p><ul data-anchor-id="uv3l">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="f7cg" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$ J_\alpha</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \sum_</span><span class="pun">{</span><span class="pln">m</span><span class="pun">=</span><span class="lit">0</span><span class="pun">}^</span><span class="pln">\infty \frac</span><span class="pun">{(-</span><span class="lit">1</span><span class="pun">)^</span><span class="pln">m</span><span class="pun">}{</span><span class="pln">m</span><span class="pun">!</span><span class="pln"> \Gamma </span><span class="pun">(</span><span class="pln">m </span><span class="pun">+</span><span class="pln"> \alpha </span><span class="pun">+</span><span class="pln"> </span><span class="lit">1</span><span class="pun">)}</span><span class="pln"> </span><span class="pun">{</span><span class="pln">\left</span><span class="pun">({</span><span class="pln"> \frac</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}{</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln">\right</span><span class="pun">)}^{</span><span class="lit">2m</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> \alpha</span><span class="pun">}</span><span class="pln"> \text </span><span class="pun">{，行内公式示例}</span><span class="pln"> $</span></code></li></ol></pre><ul data-anchor-id="5ovv">
<li><p>显示：<span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-4-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 49.112ex; height: 4.749ex; vertical-align: -1.622ex; margin: 1px 0px;" viewBox="0 -1369.172323329076 21133.463896966543 2039.7240086771008"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3B1" x="785" y="-213"></use><use xlink:href="#MJMAIN-28" x="1108" y="0"></use><use xlink:href="#MJMATHI-78" x="1497" y="0"></use><use xlink:href="#MJMAIN-29" x="2070" y="0"></use><use xlink:href="#MJMAIN-3D" x="2737" y="0"></use><g transform="translate(3793,0)"><use xlink:href="#MJSZ1-2211"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E" x="1494" y="675"></use><g transform="translate(1056,-287)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="878" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="1657" y="0"></use></g></g><g transform="translate(6762,0)"><rect stroke="none" width="4460" height="60" x="0" y="220"></rect><g transform="translate(1247,580)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212" x="389" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1168" y="0"></use><g transform="translate(1179,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-6D" x="550" y="675"></use></g></g><g transform="translate(60,-435)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-21" x="878" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-393" x="1157" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28" x="1782" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="2172" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2B" x="3050" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3B1" x="3829" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2B" x="4469" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="5248" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29" x="5748" y="0"></use></g></g><g transform="translate(11509,0)"><use xlink:href="#MJSZ2-28"></use><g transform="translate(597,0)"><g transform="translate(120,0)"><rect stroke="none" width="524" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="84" y="582"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="120" y="-531"></use></g></g><use xlink:href="#MJSZ2-29" x="1362" y="-1"></use><g transform="translate(1959,877)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2B" x="1379" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3B1" x="2157" y="0"></use></g></g><g transform="translate(15547,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">，</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">行</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">内</text></g><g transform="translate(2393,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">公</text></g><g transform="translate(3191,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">式</text></g><g transform="translate(3989,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">示</text></g><g transform="translate(4787,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">例</text></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-4"> J_\alpha(x) = \sum_{m=0}^\infty \frac{(-1)^m}{m! \Gamma (m + \alpha + 1)} {\left({ \frac{x}{2} }\right)}^{2m + \alpha} \text {，行内公式示例} </script></p></li>
<li><p>例子：</p></li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="11ib" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ J_\alpha</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \sum_</span><span class="pun">{</span><span class="pln">m</span><span class="pun">=</span><span class="lit">0</span><span class="pun">}^</span><span class="pln">\infty \frac</span><span class="pun">{(-</span><span class="lit">1</span><span class="pun">)^</span><span class="pln">m</span><span class="pun">}{</span><span class="pln">m</span><span class="pun">!</span><span class="pln"> \Gamma </span><span class="pun">(</span><span class="pln">m </span><span class="pun">+</span><span class="pln"> \alpha </span><span class="pun">+</span><span class="pln"> </span><span class="lit">1</span><span class="pun">)}</span><span class="pln"> </span><span class="pun">{</span><span class="pln">\left</span><span class="pun">({</span><span class="pln"> \frac</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}{</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> </span><span class="pun">}</span><span class="pln">\right</span><span class="pun">)}^{</span><span class="lit">2m</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> \alpha</span><span class="pun">}</span><span class="pln"> \text </span><span class="pun">{，独立公式示例}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="aojw">
<li><p>显示：<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-5-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 53.629ex; height: 6.718ex; vertical-align: -2.896ex; margin: 1px 0px;" viewBox="0 -1669.172323329076 23109.312730703106 2894.7936876958183"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3B1" x="785" y="-213"></use><use xlink:href="#MJMAIN-28" x="1108" y="0"></use><use xlink:href="#MJMATHI-78" x="1497" y="0"></use><use xlink:href="#MJMAIN-29" x="2070" y="0"></use><use xlink:href="#MJMAIN-3D" x="2737" y="0"></use><g transform="translate(3793,0)"><use xlink:href="#MJSZ2-2211" x="40" y="0"></use><g transform="translate(0,-1090)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="878" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="1657" y="0"></use></g><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E" x="578" y="1627"></use></g><g transform="translate(5606,0)"><rect stroke="none" width="7146" height="60" x="0" y="220"></rect><g transform="translate(2183,715)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-2212" x="389" y="0"></use><use xlink:href="#MJMAIN-31" x="1168" y="0"></use><g transform="translate(1668,0)"><use xlink:href="#MJMAIN-29"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="550" y="513"></use></g></g><g transform="translate(60,-716)"><use xlink:href="#MJMATHI-6D"></use><use xlink:href="#MJMAIN-21" x="878" y="0"></use><use xlink:href="#MJMAIN-393" x="1157" y="0"></use><use xlink:href="#MJMAIN-28" x="1782" y="0"></use><use xlink:href="#MJMATHI-6D" x="2172" y="0"></use><use xlink:href="#MJMAIN-2B" x="3272" y="0"></use><use xlink:href="#MJMATHI-3B1" x="4273" y="0"></use><use xlink:href="#MJMAIN-2B" x="5136" y="0"></use><use xlink:href="#MJMAIN-31" x="6136" y="0"></use><use xlink:href="#MJMAIN-29" x="6637" y="0"></use></g></g><g transform="translate(13039,0)"><use xlink:href="#MJSZ3-28"></use><g transform="translate(736,0)"><g transform="translate(120,0)"><rect stroke="none" width="692" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-78" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="96" y="-686"></use></g></g><use xlink:href="#MJSZ3-29" x="1669" y="-1"></use><g transform="translate(2405,1177)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2B" x="1379" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3B1" x="2157" y="0"></use></g></g><g transform="translate(17523,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">，</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">独</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">立</text></g><g transform="translate(2393,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">公</text></g><g transform="translate(3191,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">式</text></g><g transform="translate(3989,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">示</text></g><g transform="translate(4787,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">例</text></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-5"> J_\alpha(x) = \sum_{m=0}^\infty \frac{(-1)^m}{m! \Gamma (m + \alpha + 1)} {\left({ \frac{x}{2} }\right)}^{2m + \alpha} \text {，独立公式示例} </script><p></p></li>
<li><p>例子：</p></li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="lj0u" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ </span><span class="pun">在公式</span><span class="pln"> \eqref</span><span class="pun">{</span><span class="pln">eq</span><span class="pun">:</span><span class="pln">sample</span><span class="pun">}</span><span class="pln"> </span><span class="pun">中，我们看到了这个被自动编号的公式。</span><span class="pln">$$</span></code></li><li class="L1"><code></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">equation</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    E</span><span class="pun">=</span><span class="pln">mc</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> \text</span><span class="pun">{，自动编号公式示例}</span></code></li><li class="L4"><code><span class="pln">    \label</span><span class="pun">{</span><span class="pln">eq</span><span class="pun">:</span><span class="pln">sample</span><span class="pun">}</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">equation</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="ui6v">
<li>显示：</li>
</ul><div class="md-section-divider"></div><p data-anchor-id="f2xa"><span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-6-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 41.931ex; height: 2.664ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -884.4844583679698 18036.196216216216 1155.5361437159943"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">在</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">公</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">式</text></g><a class="mjx-svg-href" xlink:href="#mjx-eqn-eqsample" transform="translate(2393,0)"><rect width="1279.5" height="1002" y="-251" fill="none" stroke="none" pointer-events="all"></rect><g class="MathJax_ref"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></a><g transform="translate(3673,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">中</text></g><g transform="translate(4471,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">，</text></g><g transform="translate(5269,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">我</text></g><g transform="translate(6067,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">们</text></g><g transform="translate(6865,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">看</text></g><g transform="translate(7663,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">到</text></g><g transform="translate(8460,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">了</text></g><g transform="translate(9258,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">这</text></g><g transform="translate(10056,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">个</text></g><g transform="translate(10854,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">被</text></g><g transform="translate(11652,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">自</text></g><g transform="translate(12450,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">动</text></g><g transform="translate(13248,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">编</text></g><g transform="translate(14046,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">号</text></g><g transform="translate(14844,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">的</text></g><g transform="translate(15642,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">公</text></g><g transform="translate(16440,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">式</text></g><g transform="translate(17238,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">。</text></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-6"> 在公式 \eqref{eq:sample} 中，我们看到了这个被自动编号的公式。</script><p></p><div class="md-section-divider"></div><p data-anchor-id="ufi8"><span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-7-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 96.486ex; height: 2.78ex; vertical-align: -0.927ex; margin: 1px 0px;" viewBox="0 -837.8177968737382 41542.6427027027 1175.6355937474764"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(15422,0)"><g transform="translate(-16,0)"><g transform="translate(0,-67)"><use xlink:href="#MJMATHI-45"></use><use xlink:href="#MJMAIN-3D" x="1042" y="0"></use><use xlink:href="#MJMATHI-6D" x="2098" y="0"></use><g transform="translate(2977,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="613" y="583"></use></g><g transform="translate(3864,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">，</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">自</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">动</text></g><g transform="translate(2393,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">编</text></g><g transform="translate(3191,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">号</text></g><g transform="translate(3989,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">公</text></g><g transform="translate(4787,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">式</text></g><g transform="translate(5585,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">示</text></g><g transform="translate(6383,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">例</text></g></g></g></g></g><g transform="translate(39463,0)"><g id="mjx-eqn-eqsample" transform="translate(0,-67)"><g id="mjx-eqn-1"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-7">\begin{equation}
    E=mc^2 \text{，自动编号公式示例}
    \label{eq:sample}
\end{equation}</script><p></p><div class="md-section-divider"></div><h2 data-anchor-id="vny4" id="2如何输入上下标">2．如何输入上下标</h2><p data-anchor-id="i8a7"><code>^</code> 表示上标, <code>_</code> 表示下标。如果上下标的内容多于一个字符，需要用 <code>{}</code> 将这些内容括成一个整体。上下标可以嵌套，也可以同时使用。</p><ul data-anchor-id="whna">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xc1l" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ x</span><span class="pun">^{</span><span class="pln">y</span><span class="pun">^</span><span class="pln">z</span><span class="pun">}=(</span><span class="lit">1</span><span class="pun">+{</span><span class="pln">\rm e</span><span class="pun">}^</span><span class="pln">x</span><span class="pun">)^{-</span><span class="lit">2xy</span><span class="pun">^</span><span class="pln">w</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="zy3v">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-8-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 19.344ex; height: 2.78ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -911.5470793863732 8308.0892895951 1182.5987647343977"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><g transform="translate(572,412)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-79"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-7A" x="706" y="513"></use></g><use xlink:href="#MJMAIN-3D" x="1608" y="0"></use><use xlink:href="#MJMAIN-28" x="2664" y="0"></use><use xlink:href="#MJMAIN-31" x="3054" y="0"></use><use xlink:href="#MJMAIN-2B" x="3777" y="0"></use><g transform="translate(4777,0)"><use xlink:href="#MJMAIN-65"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="628" y="583"></use></g><g transform="translate(5727,0)"><use xlink:href="#MJMAIN-29"></use><g transform="translate(389,412)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="1279" y="0"></use><g transform="translate(1309,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-79"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-77" x="706" y="513"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-8"> x^{y^z}=(1+{\rm e}^x)^{-2xy^w} </script></li>
</ul><p data-anchor-id="isaz">另外，如果要在左右两边都有上下标，可以使用 <code>\sideset</code> 命令；也可以简单地在符号前面多打一个上下标，此时会以行内公式渲染。</p><ul data-anchor-id="awc8">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="6c98" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \sideset</span><span class="pun">{^</span><span class="lit">1_2</span><span class="pun">}{^</span><span class="lit">3_4</span><span class="pun">}</span><span class="pln">\bigotimes \quad </span><span class="kwd">or</span><span class="pln"> \quad </span><span class="pun">{^</span><span class="lit">1_2</span><span class="pun">}</span><span class="pln">\bigotimes </span><span class="pun">{^</span><span class="lit">3_4</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="g2yc">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-9-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 19.228ex; height: 3.938ex; vertical-align: -1.274ex; margin: 1px 0px;" viewBox="0 -1168.672323329076 8275.627775935469 1674.7864545176146"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g></g><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="0" y="957"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="0" y="-687"></use><g transform="translate(453,0)"><use xlink:href="#MJSZ2-2A02"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="2137" y="957"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="2137" y="-687"></use></g><use xlink:href="#MJMATHI-6F" x="3585" y="0"></use><use xlink:href="#MJMATHI-72" x="4071" y="0"></use><g transform="translate(5522,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="0" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="0" y="-435"></use></g><use xlink:href="#MJSZ2-2A02" x="6143" y="0"></use><g transform="translate(7821,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="0" y="510"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="0" y="-446"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-9">\sideset{^1_2}{^3_4}\bigotimes \quad or \quad {^1_2}\bigotimes {^3_4} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="clov" id="3如何输入括号和分隔符">3．如何输入括号和分隔符</h2><p data-anchor-id="pe3o"><code>()</code>、<code>[]</code> 和 <code>|</code> 表示符号本身，使用 <code>\{\}</code> 来表示 <code>{}</code> 。当要显示大号的括号或分隔符时，要用 <code>\left</code> 和 <code>\right</code> 命令。</p><p data-anchor-id="x5kb">一些特殊的括号：</p><table data-anchor-id="ry2o" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\langle</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-10-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.927ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 389.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27E8"></use></g></svg></span><script type="math/tex" id="MathJax-Element-10">\langle</script></td>
 <td style="text-align:center;">\rangle</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-11-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.927ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 389.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27E9"></use></g></svg></span><script type="math/tex" id="MathJax-Element-11">\rangle</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lceil</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-12-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 444.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2308"></use></g></svg></span><script type="math/tex" id="MathJax-Element-12">\lceil</script></td>
 <td style="text-align:center;">\rceil</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-13-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 444.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2309"></use></g></svg></span><script type="math/tex" id="MathJax-Element-13">\rceil</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lfloor</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-14-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -772.0516853480245 444.5 1044.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-230A"></use></g></svg></span><script type="math/tex" id="MathJax-Element-14">\lfloor</script></td>
 <td style="text-align:center;">\rfloor</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-15-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -772.0516853480245 444.5 1043.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-230B"></use></g></svg></span><script type="math/tex" id="MathJax-Element-15">\rfloor</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lbrace</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-16-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 500.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-7B"></use></g></svg></span><script type="math/tex" id="MathJax-Element-16">\lbrace</script></td>
 <td style="text-align:center;">\rbrace</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-17-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 500.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-7D"></use></g></svg></span><script type="math/tex" id="MathJax-Element-17">\rbrace</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lvert</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-18-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 278.5 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2223"></use></g></svg></span><script type="math/tex" id="MathJax-Element-18">\lvert</script></td>
 <td style="text-align:center;">\rvert</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-19-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 278.5 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2223"></use></g></svg></span><script type="math/tex" id="MathJax-Element-19">\rvert</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lVert</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-20-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 500.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2225"></use></g></svg></span><script type="math/tex" id="MathJax-Element-20">\lVert</script></td>
 <td style="text-align:center;">\rVert</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-21-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 500.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2225"></use></g></svg></span><script type="math/tex" id="MathJax-Element-21">\rVert</script></td>
</tr>
</tbody></table><blockquote data-anchor-id="dvfc" class="white-blockquote">
  <p><strong>@lymd</strong> 有时，我们需要在行内使用两个竖杠表示向量间的某种空间距离，可以这样写 <br>
  <span style="text-align: center; display: block"> <code>\lVert \boldsymbol{X}_i - \boldsymbol{S}_j \rVert^2</code> → <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-22-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 11.699ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -854.5839083994518 5054.838328567715 1169.5924838907188"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2225"></use><g transform="translate(500,0)"><use xlink:href="#MJMATHBI-58"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69" x="1339" y="-213"></use></g><use xlink:href="#MJMAIN-2212" x="2014" y="0"></use><g transform="translate(3015,0)"><use xlink:href="#MJMATHBI-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6A" x="980" y="-213"></use></g><g transform="translate(4100,0)"><use xlink:href="#MJMAIN-2225"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="513"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-22">\lVert \boldsymbol{X}_i - \boldsymbol{S}_j \rVert^2</script> </span></p>
</blockquote><ul data-anchor-id="mrkj">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="lt4q" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">,</span><span class="pln">y</span><span class="pun">,</span><span class="pln">z</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="lit">3y</span><span class="pun">^</span><span class="lit">2z</span><span class="pln"> \left</span><span class="pun">(</span><span class="pln"> </span><span class="lit">3</span><span class="pun">+</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">7x</span><span class="pun">+</span><span class="lit">5</span><span class="pun">}{</span><span class="lit">1</span><span class="pun">+</span><span class="pln">y</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \right</span><span class="pun">)</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="ikrf">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-23-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 31.042ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 13367.834721761645 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><use xlink:href="#MJMATHI-78" x="940" y="0"></use><use xlink:href="#MJMAIN-2C" x="1512" y="0"></use><use xlink:href="#MJMATHI-79" x="1957" y="0"></use><use xlink:href="#MJMAIN-2C" x="2455" y="0"></use><use xlink:href="#MJMATHI-7A" x="2900" y="0"></use><use xlink:href="#MJMAIN-29" x="3368" y="0"></use><use xlink:href="#MJMAIN-3D" x="4036" y="0"></use><use xlink:href="#MJMAIN-33" x="5092" y="0"></use><g transform="translate(5592,0)"><use xlink:href="#MJMATHI-79"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="706" y="583"></use></g><use xlink:href="#MJMATHI-7A" x="6546" y="0"></use><g transform="translate(7014,0)"><use xlink:href="#MJSZ3-28"></use><use xlink:href="#MJMAIN-33" x="736" y="0"></use><use xlink:href="#MJMAIN-2B" x="1459" y="0"></use><g transform="translate(2579,0)"><rect stroke="none" width="2916" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMATHI-78" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1295" y="0"></use><use xlink:href="#MJMAIN-35" x="2295" y="0"></use></g><g transform="translate(119,-726)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-2B" x="722" y="0"></use><g transform="translate(1723,0)"><use xlink:href="#MJMATHI-79"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="706" y="408"></use></g></g></g><use xlink:href="#MJSZ3-29" x="5616" y="-1"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-23"> f(x,y,z) = 3y^2z \left( 3+\frac{7x+5}{1+y^2} \right) </script></li>
</ul><p data-anchor-id="5glr">有时要用 <code>\left.</code> 或 <code>\right.</code> 进行匹配而不显示本身。</p><ul data-anchor-id="6l4k">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="wy08" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \left</span><span class="pun">.</span><span class="pln"> \frac</span><span class="pun">{{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">u</span><span class="pun">}{{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \right</span><span class="pun">|</span><span class="pln"> _</span><span class="pun">{</span><span class="pln">x</span><span class="pun">=</span><span class="lit">0</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="ovqq">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-24-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.413ex; height: 5.444ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1392.5596853480245 3176.708205366893 2336.738165722667"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(120,0)"><rect stroke="none" width="1249" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-64"></use><use xlink:href="#MJMATHI-75" x="556" y="0"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMAIN-64"></use><use xlink:href="#MJMATHI-78" x="556" y="0"></use></g></g><g transform="translate(1489,1372)"><use xlink:href="#MJMAIN-2223" x="0" y="-751"></use><g transform="translate(0,-1208.3476683316685) scale(1,0.34267332667332673)"><use xlink:href="#MJMAIN-2223"></use></g><use xlink:href="#MJMAIN-2223" x="0" y="-1996"></use></g><g transform="translate(1767,-908)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="572" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="1351" y="0"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-24"> \left. \frac{{\rm d}u}{{\rm d}x} \right| _{x=0} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="obcl" id="4如何输入分数">4．如何输入分数</h2><p data-anchor-id="ee6w">通常使用 <code>\frac {分子} {分母}</code> 来生成一个分数，分数可多层嵌套。如果分式较为复杂，亦可使用 <code>分子 \over 分母</code> 此时分数仅有一层。</p><ul data-anchor-id="w2j3">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="4yrl" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \frac</span><span class="pun">{</span><span class="pln">a</span><span class="pun">-</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">b</span><span class="pun">-</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> \quad </span><span class="kwd">or</span><span class="pln"> \quad </span><span class="pun">{</span><span class="pln">a</span><span class="pun">+</span><span class="lit">1</span><span class="pln"> \over b</span><span class="pun">+</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="9zmb">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-25-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 19.344ex; height: 4.981ex; vertical-align: -1.969ex; margin: 1px 0px;" viewBox="0 -1363.5596853480245 8329.555555555555 2152.5623706960487"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(120,0)"><rect stroke="none" width="2372" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2212" x="751" y="0"></use><use xlink:href="#MJMAIN-31" x="1752" y="0"></use></g><g transform="translate(110,-686)"><use xlink:href="#MJMATHI-62"></use><use xlink:href="#MJMAIN-2212" x="651" y="0"></use><use xlink:href="#MJMAIN-31" x="1652" y="0"></use></g></g><use xlink:href="#MJMATHI-6F" x="3779" y="0"></use><use xlink:href="#MJMATHI-72" x="4265" y="0"></use><g transform="translate(5716,0)"><g transform="translate(120,0)"><rect stroke="none" width="2372" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMAIN-31" x="1752" y="0"></use></g><g transform="translate(110,-686)"><use xlink:href="#MJMATHI-62"></use><use xlink:href="#MJMAIN-2B" x="651" y="0"></use><use xlink:href="#MJMAIN-31" x="1652" y="0"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-25"> \frac{a-1}{b-1} \quad or \quad {a+1 \over b+1} </script></li>
</ul><p data-anchor-id="dsen">当分式 <strong>仅有两个字符时</strong> 可直接输入 <code>\frac ab</code> 来快速生成一个 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-26-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 3.127ex; vertical-align: -1.274ex; margin: 1px 0px;" viewBox="0 -807.9432810218811 809.2956487659324 1331.412708949422"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(120,0)"><rect stroke="none" width="569" height="60" x="0" y="220"></rect><use transform="scale(0.848528137423857)" xlink:href="#MJMATHI-61" x="70" y="486"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMATHI-62" x="120" y="-582"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-26">\large\frac ab</script> 。</p><ul data-anchor-id="uw6t">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="1uu9" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \frac </span><span class="lit">12</span><span class="pun">,</span><span class="pln">\frac </span><span class="lit">1a</span><span class="pun">,</span><span class="pln">\frac a2 \quad \mid \quad \text</span><span class="pun">{</span><span class="lit">2</span><span class="pln"> letters only</span><span class="pun">:}</span><span class="pln"> \quad \frac </span><span class="lit">12a</span><span class="pln"> \,</span><span class="pun">,</span><span class="pln"> k\frac q</span><span class="pun">{</span><span class="pln">r</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="zkqn">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-27-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 41.467ex; height: 4.981ex; vertical-align: -1.853ex; margin: 1px 0px;" viewBox="0 -1363.5596853480245 17863.46249953942 2120.817392975275"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(120,0)"><rect stroke="none" width="620" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="60" y="-686"></use></g><use xlink:href="#MJMAIN-2C" x="1027" y="0"></use><g transform="translate(1592,0)"><rect stroke="none" width="649" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="74" y="676"></use><use xlink:href="#MJMATHI-61" x="60" y="-686"></use></g><use xlink:href="#MJMAIN-2C" x="2528" y="0"></use><g transform="translate(3093,0)"><rect stroke="none" width="649" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-61" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="74" y="-686"></use></g><use xlink:href="#MJMAIN-2223" x="5140" y="0"></use><g transform="translate(6697,0)"><use xlink:href="#MJMAIN-32"></use><use xlink:href="#MJMAIN-20" x="500" y="0"></use><use xlink:href="#MJMAIN-6C" x="751" y="0"></use><use xlink:href="#MJMAIN-65" x="1029" y="0"></use><use xlink:href="#MJMAIN-74" x="1474" y="0"></use><use xlink:href="#MJMAIN-74" x="1863" y="0"></use><use xlink:href="#MJMAIN-65" x="2253" y="0"></use><use xlink:href="#MJMAIN-72" x="2697" y="0"></use><use xlink:href="#MJMAIN-73" x="3090" y="0"></use><use xlink:href="#MJMAIN-20" x="3484" y="0"></use><use xlink:href="#MJMAIN-6F" x="3735" y="0"></use><use xlink:href="#MJMAIN-6E" x="4235" y="0"></use><use xlink:href="#MJMAIN-6C" x="4792" y="0"></use><use xlink:href="#MJMAIN-79" x="5070" y="0"></use><use xlink:href="#MJMAIN-3A" x="5599" y="0"></use></g><g transform="translate(13861,0)"><rect stroke="none" width="620" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="60" y="-686"></use></g><use xlink:href="#MJMATHI-61" x="14768" y="0"></use><use xlink:href="#MJMAIN-2C" x="15464" y="0"></use><use xlink:href="#MJMATHI-6B" x="15909" y="0"></use><g transform="translate(16718,0)"><rect stroke="none" width="1025" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-71" x="282" y="676"></use><g transform="translate(60,-726)"><use xlink:href="#MJMATHI-72"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="638" y="408"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-27"> \frac 12,\frac 1a,\frac a2 \quad \mid \quad \text{2 letters only:} \quad \frac 12a \,, k\frac q{r^2} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="duxx" id="5如何输入开方">5．如何输入开方</h2><p data-anchor-id="28bv">使用 <code>\sqrt [根指数，省略时为2] {被开方数}</code> 命令输入开方。</p><ul data-anchor-id="519c">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="sxt6" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \sqrt</span><span class="pun">{</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \quad </span><span class="kwd">or</span><span class="pln"> \quad \sqrt</span><span class="pun">[</span><span class="pln">n</span><span class="pun">]{</span><span class="lit">3</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="zyyi">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-28-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.973ex; height: 2.548ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -890.2324353480245 5605 1113.603370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-221A" x="0" y="9"></use><rect stroke="none" width="500" height="60" x="833" y="750"></rect><use xlink:href="#MJMAIN-32" x="833" y="0"></use><use xlink:href="#MJMATHI-6F" x="2334" y="0"></use><use xlink:href="#MJMATHI-72" x="2819" y="0"></use><g transform="translate(4271,0)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-6E" x="503" y="885"></use><use xlink:href="#MJMAIN-221A" x="0" y="-3"></use><rect stroke="none" width="500" height="60" x="833" y="738"></rect><use xlink:href="#MJMAIN-33" x="833" y="0"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-28"> \sqrt{2} \quad or \quad \sqrt[n]{3} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="ji3v" id="6如何输入省略号">6．如何输入省略号</h2><p data-anchor-id="rpkx">数学公式中常见的省略号有两种，<code>\ldots</code> 表示与 <strong>文本底线</strong> 对齐的省略号，<code>\cdots</code> 表示与 <strong>文本中线</strong> 对齐的省略号。</p><ul data-anchor-id="ap2i">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="673w" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ f</span><span class="pun">(</span><span class="pln">x_1</span><span class="pun">,</span><span class="pln">x_2</span><span class="pun">,</span><span class="pln">\underbrace</span><span class="pun">{</span><span class="pln">\ldots</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">\rm ldots</span><span class="pun">}</span><span class="pln"> </span><span class="pun">,</span><span class="pln">x_n</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> x_1</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> x_2</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> \underbrace</span><span class="pun">{</span><span class="pln">\cdots</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">\rm cdots</span><span class="pun">}</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> x_n</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="nzkb">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-29-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 40.541ex; height: 5.444ex; vertical-align: -3.591ex; margin: 1px 0px;" viewBox="0 -836.8422151806384 17450.61857569607 2353.1915016087387"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><g transform="translate(940,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-2C" x="1966" y="0"></use><g transform="translate(2411,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-2C" x="3437" y="0"></use><g transform="translate(3883,0)"><use xlink:href="#MJMAIN-2026" x="242" y="0"></use><g transform="translate(0,-515)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E153" x="1207" y="0"></use></g><g transform="translate(79,-1388)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64" x="278" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6F" x="835" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-74" x="1335" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-73" x="1724" y="0"></use></g></g><use xlink:href="#MJMAIN-2C" x="5707" y="0"></use><g transform="translate(6153,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-29" x="7250" y="0"></use><use xlink:href="#MJMAIN-3D" x="7917" y="0"></use><g transform="translate(8973,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="809" y="-435"></use></g><use xlink:href="#MJMAIN-2B" x="10222" y="0"></use><g transform="translate(11223,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="-435"></use></g><use xlink:href="#MJMAIN-2B" x="12471" y="0"></use><g transform="translate(13472,0)"><use xlink:href="#MJMAIN-22EF" x="242" y="0"></use><g transform="translate(0,-325)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E153" x="1207" y="0"></use></g><g transform="translate(21,-1198)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64" x="444" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6F" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-74" x="1501" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-73" x="1891" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="15352" y="0"></use><g transform="translate(16353,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="809" y="-212"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-29"> f(x_1,x_2,\underbrace{\ldots}_{\rm ldots} ,x_n) = x_1^2 + x_2^2 + \underbrace{\cdots}_{\rm cdots} + x_n^2 </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="9qp8" id="7如何输入向量">7．如何输入向量</h2><p data-anchor-id="aw6v">使用 <code>\vec{向量}</code> 来自动产生一个向量。也可以使用 <code>\overrightarrow</code> 等命令自定义字母上方的符号。</p><ul data-anchor-id="fbfy">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="4i99" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \vec</span><span class="pun">{</span><span class="pln">a</span><span class="pun">}</span><span class="pln"> \cdot \vec</span><span class="pun">{</span><span class="pln">b</span><span class="pun">}=</span><span class="lit">0</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="dfri">
<li><p>显示：<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-30-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.224ex; height: 2.432ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -989.8583648847041 3558 1032.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-20D7" x="499" y="1"></use><use xlink:href="#MJMAIN-22C5" x="751" y="0"></use><g transform="translate(1252,0)"><use xlink:href="#MJMATHI-62" x="20" y="0"></use><use xlink:href="#MJMAIN-20D7" x="470" y="254"></use></g><use xlink:href="#MJMAIN-3D" x="2001" y="0"></use><use xlink:href="#MJMAIN-30" x="3057" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-30"> \vec{a} \cdot \vec{b}=0 </script><p></p></li>
<li><p>例子：</p></li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="dypt" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ xy \text</span><span class="pun">{</span><span class="pln"> </span><span class="kwd">with</span><span class="pln"> arrows</span><span class="pun">:}</span><span class="pln"> \quad \overleftarrow</span><span class="pun">{</span><span class="pln">xy</span><span class="pun">}</span><span class="pln"> \; \mid \; \overleftrightarrow</span><span class="pun">{</span><span class="pln">xy</span><span class="pun">}</span><span class="pln"> \; \mid \; \overrightarrow</span><span class="pun">{</span><span class="pln">xy</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="7eh1">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-31-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 32.317ex; height: 3.591ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -1276.0516853480244 13898.447222222221 1546.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use><g transform="translate(1070,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-77" x="250" y="0"></use><use xlink:href="#MJMAIN-69" x="973" y="0"></use><use xlink:href="#MJMAIN-74" x="1251" y="0"></use><use xlink:href="#MJMAIN-68" x="1641" y="0"></use><use xlink:href="#MJMAIN-20" x="2197" y="0"></use><use xlink:href="#MJMAIN-61" x="2448" y="0"></use><use xlink:href="#MJMAIN-72" x="2948" y="0"></use><use xlink:href="#MJMAIN-72" x="3341" y="0"></use><use xlink:href="#MJMAIN-6F" x="3733" y="0"></use><use xlink:href="#MJMAIN-77" x="4234" y="0"></use><use xlink:href="#MJMAIN-73" x="4956" y="0"></use><use xlink:href="#MJMAIN-3A" x="5351" y="0"></use></g><g transform="translate(7699,0)"><g transform="translate(42,0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use></g><g transform="translate(4,644)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><use xlink:href="#MJMAIN-2212" x="375" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="9413" y="0"></use><g transform="translate(10247,0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use></g><g transform="translate(4,644)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><use xlink:href="#MJMAIN-2192" x="125" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="11933" y="0"></use><g transform="translate(12767,0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use></g><g transform="translate(4,644)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><use xlink:href="#MJMAIN-2192" x="125" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-31"> xy \text{ with arrows:} \quad \overleftarrow{xy} \; \mid \; \overleftrightarrow{xy} \; \mid \; \overrightarrow{xy} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="eubq" id="8如何输入积分">8．如何输入积分</h2><p data-anchor-id="f4bn">使用 <code>\int_积分下限^积分上限 {被积表达式}</code> 来输入一个积分。</p><p data-anchor-id="4r8v">例子：</p><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xwe2" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \int_0</span><span class="pun">^</span><span class="lit">1</span><span class="pln"> </span><span class="pun">{</span><span class="pln">x</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x $$</span></code></li></ol></pre><p data-anchor-id="4e1z">显示：<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-32-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 9.266ex; height: 5.792ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1580.172323329076 4003.5972213010673 2515.3428037037183"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1500" y="1539"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="787" y="-1272"></use><g transform="translate(1681,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><use xlink:href="#MJMAIN-64" x="2874" y="0"></use><use xlink:href="#MJMATHI-78" x="3431" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-32"> \int_0^1 {x^2} \,{\rm d}x </script><p></p><p data-anchor-id="g0pu">本例中 <code>\,</code> 和 <code>{\rm d}</code> 部分可省略，但加入能使式子更美观，详见“<a href="#3在字符间加入空格">在字符间加入空格</a>”及“<a href="#13如何进行字体转换">如何进行字体转换</a>”。</p><div class="md-section-divider"></div><h2 data-anchor-id="0vhx" id="9如何输入极限运算">9．如何输入极限运算</h2><p data-anchor-id="qros">使用 <code>\lim_{变量 \to 表达式} 表达式</code> 来输入一个极限。如有需求，可以更改 <code>\to</code> 符号至任意符号。</p><p data-anchor-id="rjj2">例子：</p><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="51r4" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \lim_</span><span class="pun">{</span><span class="pln">n \to \infty</span><span class="pun">}</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">n</span><span class="pun">(</span><span class="pln">n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">)}</span><span class="pln"> \quad </span><span class="kwd">and</span><span class="pln"> \quad \lim_</span><span class="pun">{</span><span class="pln">x\leftarrow</span><span class="pun">{示例}}</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">n</span><span class="pun">(</span><span class="pln">n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">)}</span><span class="pln"> $$</span></code></li></ol></pre><p data-anchor-id="s9zi">显示：<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-33-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 38.34ex; height: 5.676ex; vertical-align: -2.548ex; margin: 1px 0px;" viewBox="0 -1363.5596853480245 16527.327435025414 2427.0899229130964"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(224,0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g><g transform="translate(0,-601)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2192" x="600" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E" x="1601" y="0"></use></g><g transform="translate(2126,0)"><rect stroke="none" width="3823" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="1661" y="676"></use><g transform="translate(60,-716)"><use xlink:href="#MJMATHI-6E"></use><use xlink:href="#MJMAIN-28" x="600" y="0"></use><use xlink:href="#MJMATHI-6E" x="990" y="0"></use><use xlink:href="#MJMAIN-2B" x="1812" y="0"></use><use xlink:href="#MJMAIN-31" x="2813" y="0"></use><use xlink:href="#MJMAIN-29" x="3313" y="0"></use></g></g><use xlink:href="#MJMATHI-61" x="7236" y="0"></use><use xlink:href="#MJMATHI-6E" x="7765" y="0"></use><use xlink:href="#MJMATHI-64" x="8366" y="0"></use><g transform="translate(10056,0)"><g transform="translate(425,0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g><g transform="translate(0,-779)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2190" x="572" y="0"></use><g transform="translate(1112,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(35.264206918956695) matrix(1 0 0 -1 0 0)">示</text><g transform="translate(564,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(35.264206918956695) matrix(1 0 0 -1 0 0)">例</text></g></g></g></g><g transform="translate(12583,0)"><rect stroke="none" width="3823" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="1661" y="676"></use><g transform="translate(60,-716)"><use xlink:href="#MJMATHI-6E"></use><use xlink:href="#MJMAIN-28" x="600" y="0"></use><use xlink:href="#MJMATHI-6E" x="990" y="0"></use><use xlink:href="#MJMAIN-2B" x="1812" y="0"></use><use xlink:href="#MJMAIN-31" x="2813" y="0"></use><use xlink:href="#MJMAIN-29" x="3313" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-33"> \lim_{n \to \infty} \frac{1}{n(n+1)} \quad and \quad \lim_{x\leftarrow{示例}} \frac{1}{n(n+1)} </script><p></p><div class="md-section-divider"></div><h2 data-anchor-id="4azi" id="10如何输入累加累乘运算">10．如何输入累加、累乘运算</h2><p data-anchor-id="djqg">使用 <code>\sum_{下标表达式}^{上标表达式} {累加表达式}</code> 来输入一个累加。与之类似，使用 <code>\prod</code> <code>\bigcup</code> <code>\bigcap</code> 来分别输入累乘、并集和交集，更多符号可参考“<a href="#12如何输入其它特殊字符">其它特殊字符</a>”。 <br>
此类符号在行内显示时上下标表达式将会移至右上角和右下角，如 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-34-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.876ex; height: 3.359ex; vertical-align: -1.39ex; margin: 1px 0px;" viewBox="0 -895.9073646014878 3397.12770372282 1436.5033698900947"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2211"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="1494" y="675"></use><g transform="translate(1056,-287)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="345" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1124" y="0"></use></g><g transform="translate(2591,0)"><rect stroke="none" width="685" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="234" y="571"></use><g transform="translate(60,-513)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="488" y="550"></use></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-34">\sum_{i=1}^n \frac{1}{i^2}</script>。</p><ul data-anchor-id="f40v">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="bxs9" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \sum_</span><span class="pun">{</span><span class="pln">i</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}^</span><span class="pln">n \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">i</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \quad </span><span class="kwd">and</span><span class="pln"> \quad \prod_</span><span class="pun">{</span><span class="pln">i</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}^</span><span class="pln">n \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">i</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \quad </span><span class="kwd">and</span><span class="pln"> \quad \bigcup_</span><span class="pun">{</span><span class="pln">i</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}^{</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \Bbb</span><span class="pun">{</span><span class="pln">R</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="p9yl">
<li>显示：<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-35-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 35.792ex; height: 6.834ex; vertical-align: -2.896ex; margin: 1px 0px;" viewBox="0 -1742.6919083994517 15386.675520671946 2960.5350981731417"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ2-2211"></use><g transform="translate(147,-1090)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="345" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1124" y="0"></use></g><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="721" y="1627"></use><g transform="translate(1731,0)"><rect stroke="none" width="919" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="209" y="676"></use><g transform="translate(60,-726)"><use xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="488" y="408"></use></g></g><use xlink:href="#MJMATHI-61" x="3937" y="0"></use><use xlink:href="#MJMATHI-6E" x="4466" y="0"></use><use xlink:href="#MJMATHI-64" x="5067" y="0"></use><g transform="translate(6757,0)"><use xlink:href="#MJSZ2-220F"></use><g transform="translate(64,-1090)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="345" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1124" y="0"></use></g><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="603" y="1627"></use></g><g transform="translate(8322,0)"><rect stroke="none" width="919" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="209" y="676"></use><g transform="translate(60,-726)"><use xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="488" y="408"></use></g></g><use xlink:href="#MJMATHI-61" x="10528" y="0"></use><use xlink:href="#MJMATHI-6E" x="11058" y="0"></use><use xlink:href="#MJMATHI-64" x="11658" y="0"></use><g transform="translate(13348,0)"><use xlink:href="#MJSZ2-22C3" x="18" y="0"></use><g transform="translate(0,-1089)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="345" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1124" y="0"></use></g><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="562" y="1627"></use></g><use xlink:href="#MJAMS-52" x="14664" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-35"> \sum_{i=1}^n \frac{1}{i^2} \quad and \quad \prod_{i=1}^n \frac{1}{i^2} \quad and \quad \bigcup_{i=1}^{2} \Bbb{R} </script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="0x2o" id="11如何输入希腊字母">11．如何输入希腊字母</h2><p data-anchor-id="irgf">输入 <code>\小写希腊字母英文全称</code> 和 <code>\首字母大写希腊字母英文全称</code> 来分别输入小写和大写希腊字母。 <br>
<strong>对于大写希腊字母与现有字母相同的，直接输入大写字母即可。</strong></p><table data-anchor-id="dmxe" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\alpha</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-36-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 640.5 495.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-36">\alpha</script></td>
 <td style="text-align:center;">A</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-37-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 750.5 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-41"></use></g></svg></span><script type="math/tex" id="MathJax-Element-37">A</script></td>
 <td style="text-align:center;">\beta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-38-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 573.5 941.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B2"></use></g></svg></span><script type="math/tex" id="MathJax-Element-38">\beta</script></td>
 <td style="text-align:center;">B</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-39-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 759.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-42"></use></g></svg></span><script type="math/tex" id="MathJax-Element-39">B</script></td>
</tr>
<tr>
 <td style="text-align:center;">\gamma</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-40-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.622ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -462.0516853480245 543.5 699.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B3"></use></g></svg></span><script type="math/tex" id="MathJax-Element-40">\gamma</script></td>
 <td style="text-align:center;">\Gamma</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-41-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -701.0516853480245 625.5 722.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-393"></use></g></svg></span><script type="math/tex" id="MathJax-Element-41">\Gamma</script></td>
 <td style="text-align:center;">\delta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-42-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -738.0516853480245 451.5 769.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B4"></use></g></svg></span><script type="math/tex" id="MathJax-Element-42">\delta</script></td>
 <td style="text-align:center;">\Delta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-43-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.969ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 833.5 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-394"></use></g></svg></span><script type="math/tex" id="MathJax-Element-43">\Delta</script></td>
</tr>
<tr>
 <td style="text-align:center;">\epsilon</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-44-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.927ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -452.0516853480245 406.5 484.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3F5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-44">\epsilon</script></td>
 <td style="text-align:center;">E</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-45-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -701.0516853480245 764.5 722.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-45"></use></g></svg></span><script type="math/tex" id="MathJax-Element-45">E</script></td>
 <td style="text-align:center;">\zeta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-46-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -725.0516853480245 471.5 950.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B6"></use></g></svg></span><script type="math/tex" id="MathJax-Element-46">\zeta</script></td>
 <td style="text-align:center;">Z</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-47-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 723.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-5A"></use></g></svg></span><script type="math/tex" id="MathJax-Element-47">Z</script></td>
</tr>
<tr>
 <td style="text-align:center;">\eta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-48-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.622ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -464.0516853480245 503.5 701.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B7"></use></g></svg></span><script type="math/tex" id="MathJax-Element-48">\eta</script></td>
 <td style="text-align:center;">H</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-49-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.085ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 888.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-48"></use></g></svg></span><script type="math/tex" id="MathJax-Element-49">H</script></td>
 <td style="text-align:center;">\theta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-50-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 469.5 757.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B8"></use></g></svg></span><script type="math/tex" id="MathJax-Element-50">\theta</script></td>
 <td style="text-align:center;">\Theta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-51-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.737ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 778.5 770.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-398"></use></g></svg></span><script type="math/tex" id="MathJax-Element-51">\Theta</script></td>
</tr>
<tr>
 <td style="text-align:center;">\iota</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-52-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.811ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 354.5 494.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B9"></use></g></svg></span><script type="math/tex" id="MathJax-Element-52">\iota</script></td>
 <td style="text-align:center;">I</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-53-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 504.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-49"></use></g></svg></span><script type="math/tex" id="MathJax-Element-53">I</script></td>
 <td style="text-align:center;">\kappa</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-54-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 576.5 495.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BA"></use></g></svg></span><script type="math/tex" id="MathJax-Element-54">\kappa</script></td>
 <td style="text-align:center;">K</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-55-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.085ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 889.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4B"></use></g></svg></span><script type="math/tex" id="MathJax-Element-55">K</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lambda</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-56-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 583.5 748.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BB"></use></g></svg></span><script type="math/tex" id="MathJax-Element-56">\lambda</script></td>
 <td style="text-align:center;">\Lambda</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-57-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.622ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 694.5 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-39B"></use></g></svg></span><script type="math/tex" id="MathJax-Element-57">\Lambda</script></td>
 <td style="text-align:center;">\mu</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-58-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 1.622ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 603.5 700.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BC"></use></g></svg></span><script type="math/tex" id="MathJax-Element-58">\mu</script></td>
 <td style="text-align:center;">M</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-59-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.432ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -705.0516853480245 1051.5 726.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4D"></use></g></svg></span><script type="math/tex" id="MathJax-Element-59">M</script></td>
</tr>
<tr>
 <td style="text-align:center;">\nu</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-60-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 530.5 486.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BD"></use></g></svg></span><script type="math/tex" id="MathJax-Element-60">\nu</script></td>
 <td style="text-align:center;">N</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-61-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.085ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 888.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-61">N</script></td>
 <td style="text-align:center;">\xi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-62-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -725.0516853480245 443.5 951.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BE"></use></g></svg></span><script type="math/tex" id="MathJax-Element-62">\xi</script></td>
 <td style="text-align:center;">\Xi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-63-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -698.0516853480245 667.5 719.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-39E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-63">\Xi</script></td>
</tr>
<tr>
 <td style="text-align:center;">o</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-64-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -462.0516853480245 485.5 494.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-6F"></use></g></svg></span><script type="math/tex" id="MathJax-Element-64">o</script></td>
 <td style="text-align:center;">O</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-65-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.737ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -725.0516853480245 763.5 768.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4F"></use></g></svg></span><script type="math/tex" id="MathJax-Element-65">O</script></td>
 <td style="text-align:center;">\pi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-66-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -452.0516853480245 573.5 484.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-66">\pi</script></td>
 <td style="text-align:center;">\Pi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-67-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -701.0516853480245 750.5 722.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-67">\Pi</script></td>
</tr>
<tr>
 <td style="text-align:center;">\rho</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-68-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.622ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 517.5 700.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-68">\rho</script></td>
 <td style="text-align:center;">P</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-69-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 751.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-50"></use></g></svg></span><script type="math/tex" id="MathJax-Element-69">P</script></td>
 <td style="text-align:center;">\sigma</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-70-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -452.0516853480245 572.5 484.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C3"></use></g></svg></span><script type="math/tex" id="MathJax-Element-70">\sigma</script></td>
 <td style="text-align:center;">\Sigma</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-71-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.622ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 722.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A3"></use></g></svg></span><script type="math/tex" id="MathJax-Element-71">\Sigma</script></td>
</tr>
<tr>
 <td style="text-align:center;">\tau</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-72-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -452.0516853480245 517.5 486.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C4"></use></g></svg></span><script type="math/tex" id="MathJax-Element-72">\tau</script></td>
 <td style="text-align:center;">T</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-73-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.622ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -698.0516853480245 704.5 719.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-54"></use></g></svg></span><script type="math/tex" id="MathJax-Element-73">T</script></td>
 <td style="text-align:center;">\upsilon</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-74-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -464.0516853480245 540.5 495.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-74">\upsilon</script></td>
 <td style="text-align:center;">\Upsilon</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-75-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 778.5 747.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-75">\Upsilon</script></td>
</tr>
<tr>
 <td style="text-align:center;">\phi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-76-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 596.5 941.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3D5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-76">\phi</script></td>
 <td style="text-align:center;">\Phi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-77-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.622ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 722.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A6"></use></g></svg></span><script type="math/tex" id="MathJax-Element-77">\Phi</script></td>
 <td style="text-align:center;">\chi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-78-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.622ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -464.0516853480245 626.5 689.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C7"></use></g></svg></span><script type="math/tex" id="MathJax-Element-78">\chi</script></td>
 <td style="text-align:center;">X</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-79-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.969ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 852.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-58"></use></g></svg></span><script type="math/tex" id="MathJax-Element-79">X</script></td>
</tr>
<tr>
 <td style="text-align:center;">\psi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-80-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 651.5 941.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C8"></use></g></svg></span><script type="math/tex" id="MathJax-Element-80">\psi</script></td>
 <td style="text-align:center;">\Psi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-81-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 778.5 725.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A8"></use></g></svg></span><script type="math/tex" id="MathJax-Element-81">\Psi</script></td>
 <td style="text-align:center;">\omega</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-82-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -464.0516853480245 622.5 497.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C9"></use></g></svg></span><script type="math/tex" id="MathJax-Element-82">\omega</script></td>
 <td style="text-align:center;">\Omega</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-83-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.622ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 722.5 747.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-3A9"></use></g></svg></span><script type="math/tex" id="MathJax-Element-83">\Omega</script></td>
</tr>
</tbody></table><p data-anchor-id="h4nw"><strong>部分字母有变量专用形式，以 <code>\var-</code> 开头。</strong></p><table data-anchor-id="r2fe" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">小写形式</th>
 <th style="text-align:center;">大写形式</th>
 <th style="text-align:center;">变量形式</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\epsilon</td>
 <td style="text-align:center;">E</td>
 <td style="text-align:center;">\varepsilon</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-84-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.645ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 3305.6111111111113 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3F5"></use><use xlink:href="#MJMAIN-2223" x="684" y="0"></use><use xlink:href="#MJMATHI-45" x="1240" y="0"></use><use xlink:href="#MJMAIN-2223" x="2282" y="0"></use><use xlink:href="#MJMATHI-3B5" x="2839" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-84">\epsilon \mid E \mid \varepsilon</script></td>
</tr>
<tr>
 <td style="text-align:center;">\theta</td>
 <td style="text-align:center;">\Theta</td>
 <td style="text-align:center;">\vartheta</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-85-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.108ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 3507.6111111111113 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3B8"></use><use xlink:href="#MJMAIN-2223" x="747" y="0"></use><use xlink:href="#MJMAIN-398" x="1303" y="0"></use><use xlink:href="#MJMAIN-2223" x="2359" y="0"></use><use xlink:href="#MJMATHI-3D1" x="2916" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-85">\theta \mid \Theta \mid \vartheta</script></td>
</tr>
<tr>
 <td style="text-align:center;">\rho</td>
 <td style="text-align:center;">P</td>
 <td style="text-align:center;">\varrho</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-86-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.992ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 3454.6111111111113 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C1"></use><use xlink:href="#MJMAIN-2223" x="795" y="0"></use><use xlink:href="#MJMATHI-50" x="1351" y="0"></use><use xlink:href="#MJMAIN-2223" x="2380" y="0"></use><use xlink:href="#MJMATHI-3F1" x="2937" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-86">\rho \mid P \mid \varrho</script></td>
</tr>
<tr>
 <td style="text-align:center;">\sigma</td>
 <td style="text-align:center;">\Sigma</td>
 <td style="text-align:center;">\varsigma</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-87-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.876ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 3368.6111111111113 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3C3"></use><use xlink:href="#MJMAIN-2223" x="850" y="0"></use><use xlink:href="#MJMAIN-3A3" x="1406" y="0"></use><use xlink:href="#MJMAIN-2223" x="2406" y="0"></use><use xlink:href="#MJMATHI-3C2" x="2963" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-87">\sigma \mid \Sigma \mid \varsigma</script></td>
</tr>
<tr>
 <td style="text-align:center;">\phi</td>
 <td style="text-align:center;">\Phi</td>
 <td style="text-align:center;">\varphi</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-88-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.456ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 3641.6111111111113 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3D5"></use><use xlink:href="#MJMAIN-2223" x="874" y="0"></use><use xlink:href="#MJMAIN-3A6" x="1430" y="0"></use><use xlink:href="#MJMAIN-2223" x="2430" y="0"></use><use xlink:href="#MJMATHI-3C6" x="2987" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-88">\phi \mid \Phi \mid \varphi</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h2 data-anchor-id="xbwc" id="12如何输入其它特殊字符">12．如何输入其它特殊字符</h2><blockquote data-anchor-id="6ebx" class="white-blockquote">
  <p><strong>完整的 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-89-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 6.486ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0472474587792 2783.683639280504 973.3759328068037"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4C"></use><g transform="translate(356,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-41" x="0" y="296"></use></g><use xlink:href="#MJMATHI-54" x="717" y="0"></use><g transform="translate(1281,0)"><use xlink:href="#MJMATHI-45" x="0" y="-216"></use></g><use xlink:href="#MJMATHI-58" x="1931" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-89">\LaTeX</script> 可用符号列表可以在 <a href="https://mirror.its.dal.ca/ctan/info/symbols/comprehensive/symbols-a4.pdf" target="_blank">这份文档</a> 中查阅（极长，共 348 页），大部分常用符号可以参阅 <a href="https://pic.plover.com/MISC/symbols.pdf" target="_blank">这份精简版文档</a> 查询。</strong>需要注意的是，<span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-90-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 6.486ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0472474587792 2783.683639280504 973.3759328068037"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-4C"></use><g transform="translate(356,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-41" x="0" y="296"></use></g><use xlink:href="#MJMATHI-54" x="717" y="0"></use><g transform="translate(1281,0)"><use xlink:href="#MJMATHI-45" x="0" y="-216"></use></g><use xlink:href="#MJMATHI-58" x="1931" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-90">\LaTeX</script> 符号并不保证在 MathJax v2.2 中可用，即在 Cmd Markdown 编辑阅读器中可能并不支持所输入的特定命令。</p>
  
  <p>若需要显示更大或更小的字符，在符号前插入 <code>\large</code> 或 <code>\small</code> 命令。 <br>
  MathJax 针对任意元素均提供从小至大 <code>\tiny</code> <code>\Tiny</code> <code>\scriptsize</code> <code>\small</code> <code>*默认值 \normalsize</code> <code>\large</code> <code>\Large</code> <code>\LARGE</code> <code>\huge</code> <code>\Huge</code> 共十种渲染大小，详见<a href="http://docs.mathjax.org/en/latest/input/tex/extensions/textmacros.html#size-control" target="_blank">官方文档</a>。</p>
  
  <p><a href="http://detexify.kirelabs.org/classify.html" target="_blank">若找不到需要的符号，推荐使用 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-91-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 10.425ex; height: 2.664ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -867.2516853480245 4501.2 1133.303370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use transform="scale(1.2)" xlink:href="#MJMAIN-44"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-65" x="764" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-74" x="1209" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-65" x="1598" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-78" x="2043" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-69" x="2571" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-66" x="2849" y="0"></use><use transform="scale(1.2)" xlink:href="#MJMAIN-79" x="3222" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-91">\large\rm{Detexify}</script> 来画出想要的符号</a> <br>
  <span style="text-align: center; display: block"> <br>
  <img src="Cmd%20Markdown%20%E5%85%AC%E5%BC%8F%E6%8C%87%E5%AF%BC%E6%89%8B%E5%86%8C%20-%20%E4%BD%9C%E4%B8%9A%E9%83%A8%E8%90%BD%20Cmd%20Markdown%20%E7%BC%96%E8%BE%91%E9%98%85%E8%AF%BB%E5%99%A8_files/b0fe4b234a3fc.png" alt="detexify_t"></span></p>
</blockquote><div class="md-section-divider"></div><h3 data-anchor-id="zaof" id="1关系运算符">(1)．关系运算符</h3><table data-anchor-id="h71b" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\pm</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-92-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -687.0516853480245 778.5 708.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-B1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-92">\pm</script></td>
 <td style="text-align:center;">\times</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-93-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.853ex; height: 1.158ex; vertical-align: 0ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.274ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -512.0516853480245 778.5 532.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-D7"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-93">\times</script></td>
 <td style="text-align:center;">\div</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-94-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -558.0516853480245 778.5 615.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-F7"></use></g></svg></span><script type="math/tex" id="MathJax-Element-94">\div</script></td>
 <td style="text-align:center;">\mid</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-95-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 278.5 1041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2223"></use></g></svg></span><script type="math/tex" id="MathJax-Element-95">\mid</script></td>
</tr>
<tr>
 <td style="text-align:center;">\nmid</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-96-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="-19.5 -771.0516853480245 316 1044.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-2224"></use></g></svg></span><script type="math/tex" id="MathJax-Element-96">\nmid</script></td>
 <td style="text-align:center;">\cdot</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-97-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 0.695ex; height: 0.232ex; vertical-align: 0.463ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 0.811ex; position: absolute; bottom: -0.463ex; left: 0px;" viewBox="0 -331.0516853480245 278.5 351.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22C5"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-97">\cdot</script></td>
 <td style="text-align:center;">\circ</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-98-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.158ex; height: 0.927ex; vertical-align: 0.116ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.158ex; position: absolute; bottom: -0.116ex; left: 0px;" viewBox="0 -465.0516853480245 500.5 485.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2218"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-98">\circ</script></td>
 <td style="text-align:center;">\ast</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-99-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.158ex; height: 1.042ex; vertical-align: 0.116ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 1.158ex; position: absolute; bottom: -0.116ex; left: 0px;" viewBox="0 -486.0516853480245 500.5 506.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2217"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-99">\ast</script></td>
</tr>
<tr>
 <td style="text-align:center;">\bigodot</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-100-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.548ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 1111.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2A00"></use></g></svg></span><script type="math/tex" id="MathJax-Element-100">\bigodot</script></td>
 <td style="text-align:center;">\bigotimes</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-101-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.548ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 1111.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2A02"></use></g></svg></span><script type="math/tex" id="MathJax-Element-101">\bigotimes</script></td>
 <td style="text-align:center;">\bigoplus</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-102-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.548ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 1111.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2A01"></use></g></svg></span><script type="math/tex" id="MathJax-Element-102">\bigoplus</script></td>
 <td style="text-align:center;">\leq</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-103-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.853ex; vertical-align: -0.463ex; margin: 1px 0px;" viewBox="0 -657.0516853480245 778.5 816.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2264"></use></g></svg></span><script type="math/tex" id="MathJax-Element-103">\leq</script></td>
</tr>
<tr>
 <td style="text-align:center;">\geq</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-104-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.853ex; vertical-align: -0.463ex; margin: 1px 0px;" viewBox="0 -657.0516853480245 778.5 816.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2265"></use></g></svg></span><script type="math/tex" id="MathJax-Element-104">\geq</script></td>
 <td style="text-align:center;">\neq</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-105-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 778.5 973.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2260"></use></g></svg></span><script type="math/tex" id="MathJax-Element-105">\neq</script></td>
 <td style="text-align:center;">\approx</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-106-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.853ex; height: 1.042ex; vertical-align: 0.116ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.274ex; position: absolute; bottom: -0.116ex; left: 0px;" viewBox="0 -504.0516853480245 778.5 524.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2248"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-106">\approx</script></td>
 <td style="text-align:center;">\equiv</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-107-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.853ex; height: 1.042ex; vertical-align: 0.116ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.158ex; position: absolute; bottom: -0.116ex; left: 0px;" viewBox="0 -485.0516853480245 778.5 505.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2261"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-107">\equiv</script></td>
</tr>
<tr>
 <td style="text-align:center;">\sum</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-108-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.432ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 1056.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2211"></use></g></svg></span><script type="math/tex" id="MathJax-Element-108">\sum</script></td>
 <td style="text-align:center;">\prod</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-109-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.201ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 944.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-220F"></use></g></svg></span><script type="math/tex" id="MathJax-Element-109">\prod</script></td>
 <td style="text-align:center;">\coprod</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-110-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.201ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 944.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-2210"></use></g></svg></span><script type="math/tex" id="MathJax-Element-110">\coprod</script></td>
 <td style="text-align:center;">\backslash</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-111-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 500.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2216"></use></g></svg></span><script type="math/tex" id="MathJax-Element-111">\backslash</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="mwv7" id="2集合运算符">(2)．集合运算符</h3><table data-anchor-id="oxty" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\emptyset</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-112-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.085ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -793.0516853480245 500.5 892.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2205"></use></g></svg></span><script type="math/tex" id="MathJax-Element-112">\emptyset</script></td>
 <td style="text-align:center;">\in</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-113-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -562.0516853480245 667.5 624.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2208"></use></g></svg></span><script type="math/tex" id="MathJax-Element-113">\in</script></td>
 <td style="text-align:center;">\notin</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-114-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 667.5 973.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2209"></use></g></svg></span><script type="math/tex" id="MathJax-Element-114">\notin</script></td>
</tr>
<tr>
 <td style="text-align:center;">\subset</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-115-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -562.0516853480245 778.5 624.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2282"></use></g></svg></span><script type="math/tex" id="MathJax-Element-115">\subset</script></td>
 <td style="text-align:center;">\supset</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-116-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -562.0516853480245 778.5 623.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2283"></use></g></svg></span><script type="math/tex" id="MathJax-Element-116">\supset</script></td>
 <td style="text-align:center;">\subseteq</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-117-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.853ex; vertical-align: -0.463ex; margin: 1px 0px;" viewBox="0 -658.0516853480245 778.5 817.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2286"></use></g></svg></span><script type="math/tex" id="MathJax-Element-117">\subseteq</script></td>
</tr>
<tr>
 <td style="text-align:center;">\supseteq</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-118-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.853ex; vertical-align: -0.463ex; margin: 1px 0px;" viewBox="0 -658.0516853480245 778.5 817.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2287"></use></g></svg></span><script type="math/tex" id="MathJax-Element-118">\supseteq</script></td>
 <td style="text-align:center;">\cap</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-119-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -619.0516853480245 667.5 662.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2229"></use></g></svg></span><script type="math/tex" id="MathJax-Element-119">\cap</script></td>
 <td style="text-align:center;">\cup</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-120-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -619.0516853480245 667.5 662.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-222A"></use></g></svg></span><script type="math/tex" id="MathJax-Element-120">\cup</script></td>
</tr>
<tr>
 <td style="text-align:center;">\vee</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-121-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -619.0516853480245 667.5 662.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2228"></use></g></svg></span><script type="math/tex" id="MathJax-Element-121">\vee</script></td>
 <td style="text-align:center;">\wedge</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-122-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -619.0516853480245 667.5 662.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2227"></use></g></svg></span><script type="math/tex" id="MathJax-Element-122">\wedge</script></td>
 <td style="text-align:center;">\uplus</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-123-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.506ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -619.0516853480245 667.5 662.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-228E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-123">\uplus</script></td>
</tr>
<tr>
 <td style="text-align:center;">\top</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-124-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -689.0516853480245 778.5 710.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22A4"></use></g></svg></span><script type="math/tex" id="MathJax-Element-124">\top</script></td>
 <td style="text-align:center;">\bot</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-125-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -690.0516853480245 778.5 711.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22A5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-125">\bot</script></td>
 <td style="text-align:center;">\complement</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-126-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.085ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -867.0516853480245 500.5 910.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-2201"></use></g></svg></span><script type="math/tex" id="MathJax-Element-126">\complement</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="n0y0" id="3对数运算符">(3)．对数运算符</h3><table data-anchor-id="11n8" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\log</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-127-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 1279.5 943.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-6F" x="278" y="0"></use><use xlink:href="#MJMAIN-67" x="779" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-127">\log</script></td>
 <td style="text-align:center;">\lg</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-128-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 779 943.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-67" x="278" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-128">\lg</script></td>
 <td style="text-align:center;">\ln</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-129-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.969ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 835 737.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-6E" x="278" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-129">\ln</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="9dgd" id="4三角运算符">(4)．三角运算符</h3><table data-anchor-id="n3o5" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\backsim</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-130-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.853ex; height: 0.579ex; vertical-align: 0.347ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 0.927ex; position: absolute; bottom: -0.347ex; left: 0px;" viewBox="0 -388.0516853480245 778.5 408.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-223D"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-130">\backsim</script></td>
 <td style="text-align:center;">\cong</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-131-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.853ex; height: 1.274ex; vertical-align: 0ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 1.506ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -610.0516853480245 778.5 630.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2245"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-131">\cong</script></td>
 <td style="text-align:center;">\angle A</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-132-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.475ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 1473 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2220"></use><use xlink:href="#MJMATHI-41" x="722" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-132">\angle A</script></td>
</tr>
<tr>
 <td style="text-align:center;">\sin</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-133-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.896ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -690.0516853480245 1229.5 722.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-73"></use><use xlink:href="#MJMAIN-69" x="394" y="0"></use><use xlink:href="#MJMAIN-6E" x="673" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-133">\sin</script></td>
 <td style="text-align:center;">\cos</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-134-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.127ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -469.0516853480245 1339.5 502.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-63"></use><use xlink:href="#MJMAIN-6F" x="444" y="0"></use><use xlink:href="#MJMAIN-73" x="945" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-134">\cos</script></td>
 <td style="text-align:center;">\tan</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-135-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.359ex; height: 1.506ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -636.0516853480245 1446.5 668.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-74"></use><use xlink:href="#MJMAIN-61" x="389" y="0"></use><use xlink:href="#MJMAIN-6E" x="890" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-135">\tan</script></td>
</tr>
<tr>
 <td style="text-align:center;">\csc</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-136-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -469.0516853480245 1283.5 502.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-63"></use><use xlink:href="#MJMAIN-73" x="444" y="0"></use><use xlink:href="#MJMAIN-63" x="839" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-136">\csc</script></td>
 <td style="text-align:center;">\sec</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-137-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -469.0516853480245 1283.5 502.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-73"></use><use xlink:href="#MJMAIN-65" x="394" y="0"></use><use xlink:href="#MJMAIN-63" x="839" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-137">\sec</script></td>
 <td style="text-align:center;">\cot</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-138-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.127ex; height: 1.506ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -636.0516853480245 1334.5 669.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-63"></use><use xlink:href="#MJMAIN-6F" x="444" y="0"></use><use xlink:href="#MJMAIN-74" x="945" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-138">\cot</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="5fba" id="5微积分运算符">(5)．微积分运算符</h3><table data-anchor-id="p1o7" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\int</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-139-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -825.5516853480245 610.5 1153.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-222B"></use></g></svg></span><script type="math/tex" id="MathJax-Element-139">\int</script></td>
 <td style="text-align:center;">\iint</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-140-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.201ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -825.5516853480245 957.5 1153.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-222C"></use></g></svg></span><script type="math/tex" id="MathJax-Element-140">\iint</script></td>
 <td style="text-align:center;">\iiint</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-141-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -825.5516853480245 1304.5 1153.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-222D"></use></g></svg></span><script type="math/tex" id="MathJax-Element-141">\iiint</script></td>
</tr>
<tr>
 <td style="text-align:center;">\partial</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-142-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.853ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -736.0516853480245 567.5 779.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2202"></use></g></svg></span><script type="math/tex" id="MathJax-Element-142">\partial</script></td>
 <td style="text-align:center;">\oint</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-143-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 2.664ex; vertical-align: -0.811ex; margin: 1px 0px;" viewBox="0 -825.5516853480245 610.5 1153.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-222E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-143">\oint</script></td>
 <td style="text-align:center;">\prime</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-144-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 0.695ex; height: 1.158ex; vertical-align: 0.116ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 1.39ex; position: absolute; bottom: -0.116ex; left: 0px;" viewBox="0 -581.0516853480245 275.5 601.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2032"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-144">\prime</script></td>
</tr>
<tr>
 <td style="text-align:center;">\lim</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-145-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.243ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 1390.5 737.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-145">\lim</script></td>
 <td style="text-align:center;">\infty</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-146-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -463.0516853480245 1000.5 495.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-221E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-146">\infty</script></td>
 <td style="text-align:center;">\nabla</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-147-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.969ex; height: 1.737ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 833.5 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2207"></use></g></svg></span><script type="math/tex" id="MathJax-Element-147">\nabla</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="21b5" id="6逻辑运算符">(6)．逻辑运算符</h3><table data-anchor-id="z5wl" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\because</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-148-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.39ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -492.0516853480245 667.5 595.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-2235"></use></g></svg></span><script type="math/tex" id="MathJax-Element-148">\because</script></td>
 <td style="text-align:center;">\therefore</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-149-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 1.39ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -492.0516853480245 667.5 595.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-2234"></use></g></svg></span><script type="math/tex" id="MathJax-Element-149">\therefore</script></td>
 <td style="text-align:center;">\neg</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-150-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.506ex; height: 0.579ex; vertical-align: 0.232ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.506ex; height: 0.927ex; position: absolute; bottom: -0.232ex; left: 0px;" viewBox="0 -377.0516853480245 667.5 397.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-AC"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-150">\neg</script></td>
</tr>
<tr>
 <td style="text-align:center;">\forall</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-151-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.737ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 556.5 758.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2200"></use></g></svg></span><script type="math/tex" id="MathJax-Element-151">\forall</script></td>
 <td style="text-align:center;">\exists</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-152-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 556.5 736.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2203"></use></g></svg></span><script type="math/tex" id="MathJax-Element-152">\exists</script></td>
 <td style="text-align:center;">\not\subset</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-153-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 779 973.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2282"></use><use xlink:href="#MJMAIN-338" x="778" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-153">\not\subset</script></td>
</tr>
<tr>
 <td style="text-align:center;">\not&lt;</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-154-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -730.0516853480245 778.5 960.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-226E"></use></g></svg></span><script type="math/tex" id="MathJax-Element-154">\not<</script></td>
 <td style="text-align:center;">\not&gt;</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-155-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -729.0516853480245 778.5 959.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-226F"></use></g></svg></span><script type="math/tex" id="MathJax-Element-155">\not></script></td>
 <td style="text-align:center;">\not=</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-156-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.853ex; height: 2.317ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 778.5 973.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2260"></use></g></svg></span><script type="math/tex" id="MathJax-Element-156">\not=</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="x2ra" id="7戴帽符号">(7)．戴帽符号</h3><table data-anchor-id="xlok" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\hat{xy}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-157-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.432ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -703.8583648847041 1070 929.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use><use xlink:href="#MJMAIN-5E" x="289" y="-12"></use></g></svg></span><script type="math/tex" id="MathJax-Element-157">\hat{xy}</script></td>
 <td style="text-align:center;">\widehat{xyz}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-158-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.591ex; height: 2.317ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -748.8583648847041 1538.5 974.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use><use xlink:href="#MJMATHI-7A" x="1070" y="0"></use><use xlink:href="#MJSZ3-2C6" x="48" y="-45"></use></g></svg></span><script type="math/tex" id="MathJax-Element-158">\widehat{xyz}</script></td>
 <td style="text-align:center;">\bar{y}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-159-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.853ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -586.8583648847041 560.675 812.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-79" x="1" y="0"></use><use xlink:href="#MJMAIN-AF" x="60" y="-25"></use></g></svg></span><script type="math/tex" id="MathJax-Element-159">\bar{y}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\tilde{xy}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-160-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.432ex; height: 1.969ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -643.8583648847041 1070 869.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use><use xlink:href="#MJMAIN-7E" x="289" y="304"></use></g></svg></span><script type="math/tex" id="MathJax-Element-160">\tilde{xy}</script></td>
 <td style="text-align:center;">\widetilde{xyz}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-161-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.591ex; height: 2.085ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -680.8583648847041 1538.5 906.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMATHI-79" x="572" y="0"></use><use xlink:href="#MJMATHI-7A" x="1070" y="0"></use><use xlink:href="#MJSZ3-2DC" x="48" y="-90"></use></g></svg></span><script type="math/tex" id="MathJax-Element-161">\widetilde{xyz}</script></td>
 <td style="text-align:center;">\acute{y}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-162-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -734.8583648847041 560.675 960.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-79" x="1" y="0"></use><use xlink:href="#MJMAIN-B4" x="60" y="14"></use></g></svg></span><script type="math/tex" id="MathJax-Element-162">\acute{y}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\breve{y}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-163-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -719.8583648847041 560.675 945.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-79" x="1" y="0"></use><use xlink:href="#MJMAIN-2D8" x="60" y="4"></use></g></svg></span><script type="math/tex" id="MathJax-Element-163">\breve{y}</script></td>
 <td style="text-align:center;">\check{y}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-164-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 2.085ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -671.8583648847041 560.675 897.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-79" x="1" y="0"></use><use xlink:href="#MJMAIN-2C7" x="60" y="6"></use></g></svg></span><script type="math/tex" id="MathJax-Element-164">\check{y}</script></td>
 <td style="text-align:center;">\grave{y}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-165-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -734.8583648847041 560.675 960.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-79" x="1" y="0"></use><use xlink:href="#MJMAIN-60" x="60" y="14"></use></g></svg></span><script type="math/tex" id="MathJax-Element-165">\grave{y}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\dot{x}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-166-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.274ex; height: 1.506ex; vertical-align: 0ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.622ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -659.8583648847041 572.5 710.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMAIN-2D9" x="63" y="-31"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-166">\dot{x}</script></td>
 <td style="text-align:center;">\ddot{x}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-167-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 1.274ex; height: 1.506ex; vertical-align: 0ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.622ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -654.8583648847041 572.5 710.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMAIN-A8" x="63" y="-36"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-167">\ddot{x}</script></td>
 <td style="text-align:center;">\dddot{x}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-168-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.969ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -659.8583648847041 863.3 691.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78" x="131" y="0"></use><g transform="translate(27,518)"><use xlink:href="#MJMAIN-2E"></use><use xlink:href="#MJMAIN-2E" x="278" y="0"></use><use xlink:href="#MJMAIN-2E" x="557" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-168">\dddot{x}</script></td>
</tr>
</tbody></table><p data-anchor-id="3p64">若需要在特定文字顶部\底部放置内容，可使用 <code>\overset{顶部内容}{正常内容}</code> 和 <code>\underset{底部内容}{正常内容}</code> 命令。</p><ul data-anchor-id="dgcn">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="25dx" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \verb</span><span class="pun">+</span><span class="pln">\overset</span><span class="pun">{</span><span class="pln">above</span><span class="pun">}{</span><span class="pln">level</span><span class="pun">}+</span><span class="pln"> \qquad \overset</span><span class="pun">{</span><span class="pln">xx</span><span class="pun">}{</span><span class="pln">ABC</span><span class="pun">}</span><span class="pln"> \;\; \mid \quad \overset</span><span class="pun">{</span><span class="pln">x</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">\longmapsto</span><span class="pun">}</span><span class="pln">\ \, \mid \quad \overset</span><span class="pun">{</span><span class="pln">\bullet\circ\circ\bullet</span><span class="pun">}{</span><span class="pln">T</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="m5y7">
<li><p>显示： <br>
<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-169-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 54.788ex; height: 3.938ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -1422.155079386373 23604.4861092688 1692.2067647343977"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJTT-5C"></use><use xlink:href="#MJTT-6F" x="525" y="0"></use><use xlink:href="#MJTT-76" x="1051" y="0"></use><use xlink:href="#MJTT-65" x="1576" y="0"></use><use xlink:href="#MJTT-72" x="2102" y="0"></use><use xlink:href="#MJTT-73" x="2627" y="0"></use><use xlink:href="#MJTT-65" x="3153" y="0"></use><use xlink:href="#MJTT-74" x="3678" y="0"></use><use xlink:href="#MJTT-7B" x="4204" y="0"></use><use xlink:href="#MJTT-61" x="4729" y="0"></use><use xlink:href="#MJTT-62" x="5255" y="0"></use><use xlink:href="#MJTT-6F" x="5780" y="0"></use><use xlink:href="#MJTT-76" x="6306" y="0"></use><use xlink:href="#MJTT-65" x="6831" y="0"></use><use xlink:href="#MJTT-7D" x="7357" y="0"></use><use xlink:href="#MJTT-7B" x="7882" y="0"></use><use xlink:href="#MJTT-6C" x="8408" y="0"></use><use xlink:href="#MJTT-65" x="8933" y="0"></use><use xlink:href="#MJTT-76" x="9459" y="0"></use><use xlink:href="#MJTT-65" x="9984" y="0"></use><use xlink:href="#MJTT-6C" x="10510" y="0"></use><use xlink:href="#MJTT-7D" x="11035" y="0"></use><g transform="translate(13561,0)"><use xlink:href="#MJMATHI-41"></use><use xlink:href="#MJMATHI-42" x="750" y="0"></use><use xlink:href="#MJMATHI-43" x="1510" y="0"></use><g transform="translate(759,917)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="572" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="16664" y="0"></use><g transform="translate(17943,0)"><use xlink:href="#MJMAIN-27FC"></use><g transform="translate(456,712)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="809" y="513"></use></g></g><use xlink:href="#MJMAIN-20" x="19859" y="0"></use><use xlink:href="#MJMAIN-2223" x="20554" y="0"></use><g transform="translate(22110,0)"><use xlink:href="#MJMATHI-54" x="355" y="0"></use><g transform="translate(78,839)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2218" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2218" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219" x="1501" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-169"> \verb+\overset{above}{level}+ \qquad \overset{xx}{ABC} \;\; \mid \quad \overset{x^2}{\longmapsto}\ \, \mid \quad \overset{\bullet\circ\circ\bullet}{T} </script><p></p></li>
<li><p>例子：</p></li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="yklp" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \verb</span><span class="pun">+</span><span class="pln">\underset</span><span class="pun">{</span><span class="pln">below</span><span class="pun">}{</span><span class="pln">level</span><span class="pun">}+</span><span class="pln"> \qquad \underset</span><span class="pun">{</span><span class="pln">xx</span><span class="pun">}{</span><span class="pln">ABC</span><span class="pun">}</span><span class="pln"> \;\; \mid \quad \underset</span><span class="pun">{</span><span class="pln">x</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">\longmapsto</span><span class="pun">}</span><span class="pln">\ \, \mid \quad \underset</span><span class="pun">{</span><span class="pln">\bullet\circ\circ\bullet</span><span class="pun">}{</span><span class="pln">T</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="h8qz">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-170-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 55.714ex; height: 3.822ex; vertical-align: -2.201ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 23973.9361092688 1668.358046108636"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJTT-5C"></use><use xlink:href="#MJTT-75" x="525" y="0"></use><use xlink:href="#MJTT-6E" x="1051" y="0"></use><use xlink:href="#MJTT-64" x="1576" y="0"></use><use xlink:href="#MJTT-65" x="2102" y="0"></use><use xlink:href="#MJTT-72" x="2627" y="0"></use><use xlink:href="#MJTT-73" x="3153" y="0"></use><use xlink:href="#MJTT-65" x="3678" y="0"></use><use xlink:href="#MJTT-74" x="4204" y="0"></use><use xlink:href="#MJTT-7B" x="4729" y="0"></use><use xlink:href="#MJTT-62" x="5255" y="0"></use><use xlink:href="#MJTT-65" x="5780" y="0"></use><use xlink:href="#MJTT-6C" x="6306" y="0"></use><use xlink:href="#MJTT-6F" x="6831" y="0"></use><use xlink:href="#MJTT-77" x="7357" y="0"></use><use xlink:href="#MJTT-7D" x="7882" y="0"></use><use xlink:href="#MJTT-7B" x="8408" y="0"></use><use xlink:href="#MJTT-6C" x="8933" y="0"></use><use xlink:href="#MJTT-65" x="9459" y="0"></use><use xlink:href="#MJTT-76" x="9984" y="0"></use><use xlink:href="#MJTT-65" x="10510" y="0"></use><use xlink:href="#MJTT-6C" x="11035" y="0"></use><use xlink:href="#MJTT-7D" x="11561" y="0"></use><g transform="translate(14086,0)"><use xlink:href="#MJMATHI-41"></use><use xlink:href="#MJMATHI-42" x="750" y="0"></use><use xlink:href="#MJMATHI-43" x="1510" y="0"></use><g transform="translate(701,-623)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="572" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="17190" y="0"></use><g transform="translate(18468,0)"><use xlink:href="#MJMAIN-27FC"></use><g transform="translate(456,-769)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="809" y="513"></use></g></g><use xlink:href="#MJMAIN-20" x="20385" y="0"></use><use xlink:href="#MJMAIN-2223" x="21080" y="0"></use><g transform="translate(22636,0)"><use xlink:href="#MJMATHI-54" x="355" y="0"></use><g transform="translate(-79,-601)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2218" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2218" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219" x="1501" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-170"> \verb+\underset{below}{level}+ \qquad \underset{xx}{ABC} \;\; \mid \quad \underset{x^2}{\longmapsto}\ \, \mid \quad \underset{\bullet\circ\circ\bullet}{T} </script></li>
</ul><p data-anchor-id="qyxx">此命令可叠加嵌套使用，生成类似化学反应式的多重条件符号， <br>
如 <code>\overset{H_2}{\underset{1300℃}{\Longleftrightarrow}}</code>： <br>
<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-537-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 37.066ex; height: 5.676ex; vertical-align: -2.664ex; margin: 1px 0px;" viewBox="0 -1363.5596853480245 15978.209420862782 2451.0899229130964"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-53"></use><use xlink:href="#MJMAIN-72" x="556" y="0"></use><use xlink:href="#MJMAIN-4F" x="949" y="0"></use><use xlink:href="#MJMAIN-2B" x="1949" y="0"></use><g transform="translate(2950,0)"><use xlink:href="#MJMAIN-56"></use><g transform="translate(750,344)"><g transform="translate(0,256)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2032"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2032" x="275" y="0"></use></g></g><g transform="translate(750,-335)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-72" x="556" y="0"></use></g></g><g transform="translate(4749,0)"><use xlink:href="#MJMAIN-27FA" x="66" y="0"></use><g transform="translate(0,-803)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="1501" y="0"></use><g transform="translate(1415,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(35.264206918956695) matrix(1 0 0 -1 0 0)">℃</text></g></g><g transform="translate(570,743)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-48"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="1061" y="-213"></use></g></g><use xlink:href="#MJMAIN-53" x="7019" y="0"></use><g transform="translate(7576,0)"><use xlink:href="#MJMAIN-72"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-D7" x="555" y="479"></use><g transform="translate(392,-335)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-72" x="556" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="8962" y="0"></use><use xlink:href="#MJMAIN-32" x="9962" y="0"></use><g transform="translate(10463,0)"><use xlink:href="#MJMAIN-65"></use><g transform="translate(444,412)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2032" x="0" y="513"></use></g></g><use xlink:href="#MJMAIN-2B" x="11438" y="0"></use><g transform="translate(12559,0)"><rect stroke="none" width="620" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="60" y="-686"></use></g><g transform="translate(13466,0)"><use xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1100" y="-213"></use></g><use xlink:href="#MJMAIN-28" x="14698" y="0"></use><use xlink:href="#MJMAIN-67" x="15088" y="0"></use><use xlink:href="#MJMAIN-29" x="15588" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-537"> \rm{SrO+V^{''}_{Sr} \overset{H_2}{\underset{1300℃}{\Longleftrightarrow}} Sr^{\times}_{Sr}+2e^{'}+\frac 12O_2(g)} </script> 和 <code>\overset{Surface/bulk}{\underset{diffusion}{\longleftrightarrow}}</code>： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-538-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 57.799ex; height: 5.212ex; vertical-align: -1.969ex; margin: 1px 0px;" viewBox="0 -1451.683680096945 24862.39154020803 2258.1040343369104"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-32"></use><use xlink:href="#MJMAIN-4F" x="500" y="0"></use><g transform="translate(1279,0)"><use xlink:href="#MJMAIN-48"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219" x="1061" y="433"></use><g transform="translate(750,-367)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53" x="1168" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-54" x="1724" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4E" x="2447" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29" x="3197" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="4888" y="0"></use><use xlink:href="#MJMAIN-32" x="5888" y="0"></use><g transform="translate(6389,0)"><use xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-D7" x="1100" y="479"></use><g transform="translate(778,-367)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-59" x="1168" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53" x="1918" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5A" x="2475" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29" x="3086" y="0"></use></g></g><g transform="translate(10281,0)"><g transform="translate(643,0)"><use xlink:href="#MJMAIN-27F7" x="437" y="0"></use><g transform="translate(0,-678)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-69" x="556" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-66" x="835" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-66" x="1207" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="1580" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-73" x="2136" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-69" x="2531" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6F" x="2809" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6E" x="3310" y="0"></use></g></g><g transform="translate(0,800)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="556" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-72" x="1113" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-66" x="1505" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-61" x="1878" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-63" x="2378" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-65" x="2823" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2F" x="3267" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-62" x="3768" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="4324" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C" x="4881" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6B" x="5159" y="0"></use></g></g><use xlink:href="#MJMAIN-32" x="15136" y="0"></use><use xlink:href="#MJMAIN-4F" x="15637" y="0"></use><g transform="translate(16415,0)"><use xlink:href="#MJMAIN-48"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2219" x="1061" y="433"></use><g transform="translate(750,-367)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-59" x="1168" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53" x="1918" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5A" x="2475" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29" x="3086" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="19946" y="0"></use><use xlink:href="#MJMAIN-32" x="20946" y="0"></use><g transform="translate(21447,0)"><use xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-D7" x="1100" y="479"></use><g transform="translate(778,-367)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-28" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-53" x="1168" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-54" x="1724" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-4E" x="2447" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-29" x="3197" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-538"> \rm{2OH^{\bullet}_{O(STN)}+2O^{\times}_{O(YSZ)} \; \overset{Surface/bulk}{\underset{diffusion}{\longleftrightarrow}} \;\; 2OH^{\bullet}_{O(YSZ)}+2O^{\times}_{O(STN)}} </script><p></p><p data-anchor-id="h32b">一般建议在书写化学方程式时声明 <code>\require{AMDcd}</code> 语句，使用 MathJax 内置的交换图表功能，具体例子可<a href="#1如何输入一个交换图表">参见下文</a>。</p><div class="md-section-divider"></div><h3 data-anchor-id="o3dh" id="8连线符号">(8)．连线符号</h3><p data-anchor-id="t79a">其它可用的文字修饰符可参见官方文档 <a href="https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference#answer-13081" target="_blank">"Additional decorations"</a>。</p><table data-anchor-id="jyn2" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\fbox{a+b+c+d} <span style="display: block"><strong>高级框选需<a href="#5添加删除线">声明 <code>enclose</code> 标签</a></strong></span></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-172-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 11.467ex; height: 3.127ex; vertical-align: -0.927ex; margin: 1px 0px;" viewBox="0 -991.0516853480245 4943.5 1369.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(275,0)"><use xlink:href="#MJMAIN-61"></use><use xlink:href="#MJMAIN-2B" x="500" y="0"></use><use xlink:href="#MJMAIN-62" x="1279" y="0"></use><use xlink:href="#MJMAIN-2B" x="1835" y="0"></use><use xlink:href="#MJMAIN-63" x="2614" y="0"></use><use xlink:href="#MJMAIN-2B" x="3058" y="0"></use><use xlink:href="#MJMAIN-64" x="3837" y="0"></use></g><line stroke="black" stroke-width="75" x1="0" y2="37.5" y1="37.5" x2="4943" transform="translate(0,896)"></line><line stroke="black" stroke-width="75" x2="37.5" x1="37.5" y1="0" y2="1329" transform="translate(4868,-358)"></line><line stroke="black" stroke-width="75" x1="0" y2="37.5" y1="37.5" x2="4943" transform="translate(0,-358)"></line><line stroke="black" stroke-width="75" x2="37.5" x1="37.5" y1="0" y2="1329" transform="translate(0,-358)"></line></g></svg></span><script type="math/tex" id="MathJax-Element-172">\fbox{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overleftarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-173-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.205ex; height: 3.822ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -1527.0516853480244 5670.808333333334 1630.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(42,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(1,895)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><g transform="translate(131.45423497267745,0) scale(7.189890710382515,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2212" x="4890" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-173">\overleftarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overrightarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-174-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.089ex; height: 3.822ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -1527.0516853480244 5642.808333333334 1630.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(1,895)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(-147.68428961748646,0) scale(7.19153005464481,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="4640" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-174">\overrightarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overleftrightarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-175-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.089ex; height: 3.822ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -1527.0516853480244 5642.808333333334 1630.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(1,895)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><g transform="translate(169.9640710382513,0) scale(6.734153005464482,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="4640" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-175">\overleftrightarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underleftarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-176-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.205ex; height: 3.591ex; vertical-align: -1.969ex; margin: 1px 0px;" viewBox="-1.975 -715.0516853480245 5668.833333333334 1522.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(42,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(-2,-775)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><g transform="translate(131.45423497267745,0) scale(7.189890710382515,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2212" x="4890" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-176">\underleftarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underrightarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-177-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.089ex; height: 3.591ex; vertical-align: -1.969ex; margin: 1px 0px;" viewBox="-1.975 -715.0516853480245 5640.833333333334 1522.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(-2,-775)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(-147.68428961748646,0) scale(7.19153005464481,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="4640" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-177">\underrightarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underleftrightarrow{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-178-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.089ex; height: 3.591ex; vertical-align: -1.969ex; margin: 1px 0px;" viewBox="-1.975 -715.0516853480245 5640.833333333334 1522.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(28,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(-2,-775)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><g transform="translate(169.9640710382513,0) scale(6.734153005464482,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="4640" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-178">\underleftrightarrow{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overline{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-179-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.089ex; height: 2.664ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -1063.0516853480244 5656.808333333334 1166.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(35,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(1,352)"><use xlink:href="#MJMAIN-AF" x="-70" y="0"></use><g transform="translate(-575.1964450600186,0) scale(13.470452446906743,1)"><use xlink:href="#MJMAIN-AF"></use></g><use xlink:href="#MJMAIN-AF" x="5154" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-179">\overline{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underline{a+b+c+d}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-180-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 13.205ex; height: 2.548ex; vertical-align: -0.927ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.205ex; height: 2.896ex; position: absolute; bottom: -0.347ex; left: 0px;" viewBox="-1.975 -715.0516853480245 5668.833333333334 1269.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(42,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use></g><g transform="translate(-2,-534)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(-186.19412568306018,0) scale(7.647267759562842,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2212" x="4890" y="0"></use></g></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-180">\underline{a+b+c+d}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overbrace{a+b+c+d}^{Sample}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-181-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.973ex; height: 5.676ex; vertical-align: -0.347ex; margin: 1px 0px;" viewBox="0 -2322.3768951971037 5598.808333333334 2425.428580545128"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use><g transform="translate(13,1020)"><use xlink:href="#MJSZ4-E150" x="23" y="0"></use><g transform="translate(526.0243055555555,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(2341,0)"><use xlink:href="#MJSZ4-E153"></use><use xlink:href="#MJSZ4-E152" x="450" y="0"></use></g><g transform="translate(3284.9409722222226,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E151" x="5110" y="0"></use></g><g transform="translate(1617,1703)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-61" x="645" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="1175" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-70" x="2053" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6C" x="2557" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-65" x="2855" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-181">\overbrace{a+b+c+d}^{Sample}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underbrace{a+b+c+d}_{Sample}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-182-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.973ex; height: 5.676ex; vertical-align: -4.17ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 5594.858333333334 2449.8725805451286"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><use xlink:href="#MJMATHI-62" x="1752" y="0"></use><use xlink:href="#MJMAIN-2B" x="2404" y="0"></use><use xlink:href="#MJMATHI-63" x="3404" y="0"></use><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use><g transform="translate(10,-597)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(526.0243055555555,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(2341,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><g transform="translate(3284.9409722222226,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E153" x="5110" y="0"></use></g><g transform="translate(1617,-1477)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-53"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-61" x="645" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="1175" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-70" x="2053" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6C" x="2557" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-65" x="2855" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-182">\underbrace{a+b+c+d}_{Sample}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-183-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.973ex; height: 8.919ex; vertical-align: -3.822ex; margin: 1px 0px;" viewBox="0 -2245.8029083994516 5598.808333333334 3831.424272766194"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-2B" x="751" y="0"></use><g transform="translate(1752,0)"><use xlink:href="#MJMATHI-62"></use><use xlink:href="#MJMAIN-2B" x="651" y="0"></use><use xlink:href="#MJMATHI-63" x="1652" y="0"></use><g transform="translate(12,-597)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(486.45353835978835,0) scale(0.25826719576719565,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(592,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><g transform="translate(1495.9257605820105,0) scale(0.25826719576719565,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E153" x="1611" y="0"></use></g><g transform="translate(590,-1450)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2E" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="779" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="4060" y="0"></use><use xlink:href="#MJMATHI-64" x="5061" y="0"></use><g transform="translate(13,1020)"><use xlink:href="#MJSZ4-E150" x="23" y="0"></use><g transform="translate(526.0243055555555,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(2341,0)"><use xlink:href="#MJSZ4-E153"></use><use xlink:href="#MJSZ4-E152" x="450" y="0"></use></g><g transform="translate(3284.9409722222226,0) scale(4.423611111111112,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E151" x="5110" y="0"></use></g><g transform="translate(2340,1654)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2E" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="779" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-183">\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\underbrace{a\cdot a\cdots a}_{b\text{ times}}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-184-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.919ex; height: 4.633ex; vertical-align: -3.591ex; margin: 1px 0px;" viewBox="0 -462.0516853480245 3829.2777777777774 1987.6938649949382"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-22C5" x="751" y="0"></use><use xlink:href="#MJMATHI-61" x="1252" y="0"></use><use xlink:href="#MJMAIN-22EF" x="1948" y="0"></use><use xlink:href="#MJMATHI-61" x="3287" y="0"></use><g transform="translate(12,-525)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(506.03409391534393,0) scale(2.319378306878307,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(1458,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><g transform="translate(2381.1729828042326,0) scale(2.319378306878307,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E153" x="3342" y="0"></use></g><g transform="translate(840,-1398)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-62"></use><g transform="translate(303,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-20"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-74" x="250" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-69" x="640" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6D" x="918" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-65" x="1751" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-73" x="2196" y="0"></use></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-184">\underbrace{a\cdot a\cdots a}_{b\text{ times}}</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h3 data-anchor-id="736g" id="9箭头符号">(9)．箭头符号</h3><ul data-anchor-id="8fch">
<li>推荐使用符号：</li>
</ul><table data-anchor-id="cs1i" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\to</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-185-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1000.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2192"></use></g></svg></span><script type="math/tex" id="MathJax-Element-185">\to</script></td>
 <td style="text-align:center;">\mapsto</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-186-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1000.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21A6"></use></g></svg></span><script type="math/tex" id="MathJax-Element-186">\mapsto</script></td>
 <td style="text-align:center;">\underrightarrow{1℃/min}</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-187-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.571ex; height: 4.286ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -884.4844583679698 3696.892825974129 1859.5361437159943"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(28,0)"><use xlink:href="#MJMAIN-31"></use><g transform="translate(500,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">℃</text></g><use xlink:href="#MJMAIN-2F" x="1315" y="0"></use><use xlink:href="#MJMATHI-6D" x="1816" y="0"></use><use xlink:href="#MJMATHI-69" x="2694" y="0"></use><use xlink:href="#MJMATHI-6E" x="3040" y="0"></use></g><g transform="translate(0,-943)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(121.59927246751818,0) scale(4.004742337662507,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="2696" y="0"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-187">\underrightarrow{1℃/min}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\implies</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-188-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 5.097ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 2194.0555555555557 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F9" x="277" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-188">\implies</script></td>
 <td style="text-align:center;">\iff</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-189-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 5.56ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 2414.0555555555557 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27FA" x="277" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-189">\iff</script></td>
 <td style="text-align:center;">\impliedby</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-190-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.981ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 2165.0555555555557 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F8" x="277" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-190">\impliedby</script></td>
</tr>
</tbody></table><ul data-anchor-id="mp6y">
<li>其它可用符号：</li>
</ul><table data-anchor-id="9tks" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\uparrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-191-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 500.5 929.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2191"></use></g></svg></span><script type="math/tex" id="MathJax-Element-191">\uparrow</script></td>
 <td style="text-align:center;">\Uparrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-192-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 611.5 930.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21D1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-192">\Uparrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\downarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-193-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.158ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 500.5 930.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2193"></use></g></svg></span><script type="math/tex" id="MathJax-Element-193">\downarrow</script></td>
 <td style="text-align:center;">\Downarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-194-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.39ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 611.5 930.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21D3"></use></g></svg></span><script type="math/tex" id="MathJax-Element-194">\Downarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\leftarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-195-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1000.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2190"></use></g></svg></span><script type="math/tex" id="MathJax-Element-195">\leftarrow</script></td>
 <td style="text-align:center;">\Leftarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-196-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 1000.5 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21D0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-196">\Leftarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\rightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-197-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1000.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2192"></use></g></svg></span><script type="math/tex" id="MathJax-Element-197">\rightarrow</script></td>
 <td style="text-align:center;">\Rightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-198-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 1000.5 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21D2"></use></g></svg></span><script type="math/tex" id="MathJax-Element-198">\Rightarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\leftrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-199-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1000.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2194"></use></g></svg></span><script type="math/tex" id="MathJax-Element-199">\leftrightarrow</script></td>
 <td style="text-align:center;">\Leftrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-200-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -547.0516853480245 1000.5 593.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-21D4"></use></g></svg></span><script type="math/tex" id="MathJax-Element-200">\Leftrightarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\longleftarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-201-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.707ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1609.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F5"></use></g></svg></span><script type="math/tex" id="MathJax-Element-201">\longleftarrow</script></td>
 <td style="text-align:center;">\Longleftarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-202-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.707ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 1609.5 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F8"></use></g></svg></span><script type="math/tex" id="MathJax-Element-202">\Longleftarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\longrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-203-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.822ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1638.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F6"></use></g></svg></span><script type="math/tex" id="MathJax-Element-203">\longrightarrow</script></td>
 <td style="text-align:center;">\Longrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-204-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.822ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 1638.5 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F9"></use></g></svg></span><script type="math/tex" id="MathJax-Element-204">\Longrightarrow</script></td>
</tr>
<tr>
 <td style="text-align:center;">\longleftrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-205-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.286ex; height: 1.274ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -532.0516853480245 1859.5 564.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27F7"></use></g></svg></span><script type="math/tex" id="MathJax-Element-205">\longleftrightarrow</script></td>
 <td style="text-align:center;">\Longleftrightarrow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-206-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.286ex; height: 1.39ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -546.0516853480245 1858.5 591.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-27FA"></use></g></svg></span><script type="math/tex" id="MathJax-Element-206">\Longleftrightarrow</script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h2 data-anchor-id="rah1" id="13如何进行字体转换">13．如何进行字体转换</h2><p data-anchor-id="ufey">若要对公式的某一部分字符进行字体转换，可以用 <code>{\字体 {需转换的部分字符}}</code> 命令，其中 <code>\字体</code> 部分可以参照下表选择合适的字体。一般情况下，公式默认为斜体字 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-207-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 5.328ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 2314 749.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-69"></use><use xlink:href="#MJMATHI-74" x="345" y="0"></use><use xlink:href="#MJMATHI-61" x="707" y="0"></use><use xlink:href="#MJMATHI-6C" x="1236" y="0"></use><use xlink:href="#MJMATHI-69" x="1535" y="0"></use><use xlink:href="#MJMATHI-63" x="1880" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-207">italic</script> 。</p><p data-anchor-id="akr8">示例中 <strong>全部大写</strong> 的字体仅大写可用。</p><table data-anchor-id="v1i7" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">全字母可用</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">仅大写可用</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">\rm</td>
 <td style="text-align:center;">罗马体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-208-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.413ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -726.0516853480245 3170 941.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-53"></use><use xlink:href="#MJMAIN-61" x="556" y="0"></use><use xlink:href="#MJMAIN-6D" x="1057" y="0"></use><use xlink:href="#MJMAIN-70" x="1890" y="0"></use><use xlink:href="#MJMAIN-6C" x="2447" y="0"></use><use xlink:href="#MJMAIN-65" x="2725" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-208">\rm{Sample}</script></td>
 <td style="text-align:center;"><strong>\mathcal</strong></td>
 <td style="text-align:center;"><strong>花体（数学符号等）</strong></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-209-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 10.772ex; height: 1.969ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -749.0516853480245 4652 827.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJCAL-53"></use><use xlink:href="#MJCAL-41" x="642" y="0"></use><use xlink:href="#MJCAL-4D" x="1462" y="0"></use><use xlink:href="#MJCAL-50" x="2663" y="0"></use><use xlink:href="#MJCAL-4C" x="3397" y="0"></use><use xlink:href="#MJCAL-45" x="4087" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-209">\mathcal{SAMPLE}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\it</td>
 <td style="text-align:center;">斜体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-210-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.297ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -727.0516853480245 3131 942.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAINI-53"></use><use xlink:href="#MJMAINI-61" x="562" y="0"></use><use xlink:href="#MJMAINI-6D" x="1074" y="0"></use><use xlink:href="#MJMAINI-70" x="1892" y="0"></use><use xlink:href="#MJMAINI-6C" x="2404" y="0"></use><use xlink:href="#MJMAINI-65" x="2660" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-210">\it{Sample}</script></td>
 <td style="text-align:center;"><strong>\mathbb</strong></td>
 <td style="text-align:center;"><strong>黑板粗体（定义域等）</strong></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-211-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 9.73ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -723.0516853480245 4170 756.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJAMS-53"></use><use xlink:href="#MJAMS-41" x="556" y="0"></use><use xlink:href="#MJAMS-4D" x="1279" y="0"></use><use xlink:href="#MJAMS-50" x="2223" y="0"></use><use xlink:href="#MJAMS-4C" x="2835" y="0"></use><use xlink:href="#MJAMS-45" x="3502" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-211">\mathbb{SAMPLE}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\bf</td>
 <td style="text-align:center;">粗体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-212-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.456ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -719.0516853480245 3644 934.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAINB-53"></use><use xlink:href="#MJMAINB-61" x="639" y="0"></use><use xlink:href="#MJMAINB-6D" x="1199" y="0"></use><use xlink:href="#MJMAINB-70" x="2157" y="0"></use><use xlink:href="#MJMAINB-6C" x="2797" y="0"></use><use xlink:href="#MJMAINB-65" x="3116" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-212">\bf{Sample}</script></td>
 <td style="text-align:center;">\mit</td>
 <td style="text-align:center;">数学斜体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-213-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 10.772ex; height: 1.853ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 4645 780.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-53"></use><use xlink:href="#MJMATHI-41" x="645" y="0"></use><use xlink:href="#MJMATHI-4D" x="1396" y="0"></use><use xlink:href="#MJMATHI-50" x="2447" y="0"></use><use xlink:href="#MJMATHI-4C" x="3199" y="0"></use><use xlink:href="#MJMATHI-45" x="3880" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-213">\mit{SAMPLE}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\sf</td>
 <td style="text-align:center;">等线体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-214-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.066ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -737.0516853480245 3034 952.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSS-53"></use><use xlink:href="#MJSS-61" x="556" y="0"></use><use xlink:href="#MJSS-6D" x="1038" y="0"></use><use xlink:href="#MJSS-70" x="1832" y="0"></use><use xlink:href="#MJSS-6C" x="2350" y="0"></use><use xlink:href="#MJSS-65" x="2589" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-214">\sf{Sample}</script></td>
 <td style="text-align:center;">\scr</td>
 <td style="text-align:center;">手写体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-215-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 14.015ex; height: 1.853ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -742.0516853480245 6035 814.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSCR-53"></use><use xlink:href="#MJSCR-41" x="1016" y="0"></use><use xlink:href="#MJSCR-4D" x="2033" y="0"></use><use xlink:href="#MJSCR-50" x="3249" y="0"></use><use xlink:href="#MJSCR-4C" x="4281" y="0"></use><use xlink:href="#MJSCR-45" x="5316" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-215">\scr{SAMPLE}</script></td>
</tr>
<tr>
 <td style="text-align:center;">\tt</td>
 <td style="text-align:center;">打字机体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-216-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.297ex; height: 2.085ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -643.0516853480245 3164 885.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJTT-53"></use><use xlink:href="#MJTT-61" x="525" y="0"></use><use xlink:href="#MJTT-6D" x="1051" y="0"></use><use xlink:href="#MJTT-70" x="1587" y="0"></use><use xlink:href="#MJTT-6C" x="2113" y="0"></use><use xlink:href="#MJTT-65" x="2638" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-216">\tt{Sample}</script></td>
 <td style="text-align:center;"></td>
 <td style="text-align:center;"></td>
 <td style="text-align:center;"></td>
</tr>
<tr>
 <td style="text-align:center;">\frak</td>
 <td style="text-align:center;">旧德式字体</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-217-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.645ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -713.0516853480245 3280 946.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJFRAK-53"></use><use xlink:href="#MJFRAK-61" x="829" y="0"></use><use xlink:href="#MJFRAK-6D" x="1330" y="0"></use><use xlink:href="#MJFRAK-70" x="2097" y="0"></use><use xlink:href="#MJFRAK-6C" x="2598" y="0"></use><use xlink:href="#MJFRAK-65" x="2878" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-217">\frak{Sample}</script></td>
 <td style="text-align:center;"></td>
 <td style="text-align:center;"></td>
 <td style="text-align:center;"></td>
</tr>
</tbody></table><blockquote data-anchor-id="rofh" class="white-blockquote">
  <p><strong>@lymd</strong> <code>\boldsymbol{\alpha}</code> 用来表示向量或者矩阵的加粗斜体，如向量 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-218-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.737ex; height: 1.853ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -759.8583648847041 761.5 788.9100502327285"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHBI-3B1"></use><use xlink:href="#MJMAINB-20D7" x="683" y="15"></use></g></svg></span><script type="math/tex" id="MathJax-Element-218">\boldsymbol{\vec\alpha}</script>。</p>
</blockquote><p data-anchor-id="g1ve">转换字体十分常用，例如在积分中：</p><ul data-anchor-id="xq8q">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="faw6" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Bad</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="typ">Better</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \int_0</span><span class="pun">^</span><span class="lit">1</span><span class="pln"> x</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> dx </span><span class="pun">&amp;</span><span class="pln"> \int_0</span><span class="pun">^</span><span class="lit">1</span><span class="pln"> x</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> \,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="wn6w">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-219-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 23.05ex; height: 12.394ex; vertical-align: -5.676ex; margin: 1px 0px;" viewBox="0 -2922.948401851859 9926.489011924448 5345.896803703718"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(1019,1887)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-61" x="708" y="0"></use><use xlink:href="#MJMAIN-64" x="1209" y="0"></use></g><g transform="translate(0,-1273)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1500" y="1539"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="787" y="-1272"></use><g transform="translate(1681,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><use xlink:href="#MJMATHI-64" x="2707" y="0"></use><use xlink:href="#MJMATHI-78" x="3231" y="0"></use></g></g><g transform="translate(5188,0)"><g transform="translate(617,1887)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-65" x="708" y="0"></use><use xlink:href="#MJMAIN-74" x="1153" y="0"></use><use xlink:href="#MJMAIN-74" x="1542" y="0"></use><use xlink:href="#MJMAIN-65" x="1932" y="0"></use><use xlink:href="#MJMAIN-72" x="2376" y="0"></use></g><g transform="translate(0,-1273)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1500" y="1539"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="787" y="-1272"></use><g transform="translate(1681,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><use xlink:href="#MJMAIN-64" x="2874" y="0"></use><use xlink:href="#MJMATHI-78" x="3431" y="0"></use></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="9592" transform="translate(0,1266)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-219">\begin{array}{cc}
    \mathrm{Bad} & \mathrm{Better} \\
    \hline \\
    \int_0^1 x^2 dx & \int_0^1 x^2 \,{\rm d}x
\end{array}</script></li>
</ul><p data-anchor-id="fcmm">注意比较两个式子间 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-220-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.548ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -715.0516853480245 1096 747.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-64"></use><use xlink:href="#MJMATHI-78" x="523" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-220">dx</script> 与 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-221-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.664ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 1129 748.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-64"></use><use xlink:href="#MJMATHI-78" x="556" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-221">{\rm d} x</script> 的不同。 <br>
使用 <code>\operatorname</code> 命令也可以达到相同的效果，详见“<a href="#1定义新的运算符-operatorname">定义新的运算符</a>”。</p><div class="md-section-divider"></div><h2 data-anchor-id="d177" id="14如何高亮一行公式">14．如何高亮一行公式</h2><p data-anchor-id="7ls5">使用 <code>\bbox[底色, (可选)边距, (可选)边框 border: 框宽度 框类型 框颜色]</code> 命令来高亮一行公式。 <br>
底色和框颜色支持详见“<a href="#4更改文字颜色-color">更改文字颜色</a>”，边距及框宽度支持 <code>绝对像素 px</code> 或 <code>相对大小 em</code>，框类型支持 <code>实线 solid</code> 或 <code>虚线 dashed</code>。</p><ul data-anchor-id="9ot5">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="mrl3" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\bbox</span><span class="pun">[</span><span class="pln">yellow</span><span class="pun">]{</span></code></li><li class="L2"><code><span class="pln">    e</span><span class="pun">^</span><span class="pln">x</span><span class="pun">=</span><span class="pln">\lim_</span><span class="pun">{</span><span class="pln">n\to\infty</span><span class="pun">}</span><span class="pln"> \left</span><span class="pun">(</span><span class="pln"> </span><span class="lit">1</span><span class="pun">+</span><span class="pln">\frac</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}{</span><span class="pln">n</span><span class="pun">}</span><span class="pln"> \right</span><span class="pun">)^</span><span class="pln">n \qquad </span><span class="pun">(</span><span class="lit">1</span><span class="pun">)</span></code></li><li class="L3"><code><span class="pun">}</span></code></li><li class="L4"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="zyfu">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-222-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 28.494ex; height: 5.792ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1511.487511124476 12272.64121225529 2482.0391964725004"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><rect fill="yellow" stroke="none" width="12272" height="2441" x="0" y="-951"></rect><use xlink:href="#MJMATHI-65"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="659" y="583"></use><use xlink:href="#MJMAIN-3D" x="1249" y="0"></use><g transform="translate(2305,0)"><g transform="translate(224,0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g><g transform="translate(0,-601)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2192" x="600" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E" x="1601" y="0"></use></g></g><g transform="translate(4311,0)"><use xlink:href="#MJSZ3-28"></use><use xlink:href="#MJMAIN-31" x="736" y="0"></use><use xlink:href="#MJMAIN-2B" x="1459" y="0"></use><g transform="translate(2579,0)"><rect stroke="none" width="720" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-78" x="74" y="676"></use><use xlink:href="#MJMATHI-6E" x="60" y="-686"></use></g><use xlink:href="#MJSZ3-29" x="3420" y="-1"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="5878" y="1665"></use></g><use xlink:href="#MJMAIN-28" x="10993" y="0"></use><use xlink:href="#MJMAIN-31" x="11382" y="0"></use><use xlink:href="#MJMAIN-29" x="11883" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-222">
\bbox[yellow]{
    e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n \qquad (1)
}
</script></li>
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="no73" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\bbox</span><span class="pun">[#</span><span class="lit">9ff</span><span class="pun">,</span><span class="pln"> </span><span class="lit">5px</span><span class="pun">]{</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">此处向外添加</span><span class="pln"> </span><span class="lit">5</span><span class="pln"> </span><span class="pun">像素的边距</span></code></li><li class="L2"><code><span class="pln">    e</span><span class="pun">^</span><span class="pln">x</span><span class="pun">=</span><span class="pln">\lim_</span><span class="pun">{</span><span class="pln">n\to\infty</span><span class="pun">}</span><span class="pln"> \left</span><span class="pun">(</span><span class="pln"> </span><span class="lit">1</span><span class="pun">+</span><span class="pln">\frac</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}{</span><span class="pln">n</span><span class="pun">}</span><span class="pln"> \right</span><span class="pun">)^</span><span class="pln">n \qquad </span><span class="pun">(</span><span class="lit">1</span><span class="pun">)</span></code></li><li class="L3"><code><span class="pun">}</span></code></li><li class="L4"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="qc0c">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-223-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 29.653ex; height: 6.95ex; vertical-align: -2.896ex; margin: 1px 0px;" viewBox="0 -1760.8431095800745 12771.352409166488 2980.7503933836974"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><rect fill="#9ff" stroke="none" width="12771" height="2940" x="0" y="-1200"></rect><g><g transform="translate(249,0)"><use xlink:href="#MJMATHI-65"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="659" y="583"></use><use xlink:href="#MJMAIN-3D" x="1249" y="0"></use><g transform="translate(2305,0)"><g transform="translate(224,0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g><g transform="translate(0,-601)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2192" x="600" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E" x="1601" y="0"></use></g></g><g transform="translate(4311,0)"><use xlink:href="#MJSZ3-28"></use><use xlink:href="#MJMAIN-31" x="736" y="0"></use><use xlink:href="#MJMAIN-2B" x="1459" y="0"></use><g transform="translate(2579,0)"><rect stroke="none" width="720" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-78" x="74" y="676"></use><use xlink:href="#MJMATHI-6E" x="60" y="-686"></use></g><use xlink:href="#MJSZ3-29" x="3420" y="-1"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="5878" y="1665"></use></g><use xlink:href="#MJMAIN-28" x="10993" y="0"></use><use xlink:href="#MJMAIN-31" x="11382" y="0"></use><use xlink:href="#MJMAIN-29" x="11883" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-223">
\bbox[#9ff, 5px]{
    e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n \qquad (1)
}
</script></li>
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="3k35" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pun">%</span><span class="pln"> </span><span class="pun">此处使用</span><span class="pln"> </span><span class="lit">0.5</span><span class="pln"> </span><span class="pun">倍行高作为边距，附加</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">像素的实线边框（</span><span class="typ">Ctrl</span><span class="pun">+</span><span class="typ">Alt</span><span class="pun">+</span><span class="pln">Y </span><span class="pun">可见）</span></code></li><li class="L2"><code><span class="pln">\bbox</span><span class="pun">[#</span><span class="lit">2f3542</span><span class="pun">,</span><span class="pln"> </span><span class="lit">0.5em</span><span class="pun">,</span><span class="pln"> border</span><span class="pun">:</span><span class="lit">2px</span><span class="pln"> solid </span><span class="com">#f1f2f6]{</span></code></li><li class="L3"><code><span class="pln">    \color</span><span class="pun">{#</span><span class="pln">f1f2f6</span><span class="pun">}{</span><span class="pln">e</span><span class="pun">^</span><span class="pln">x</span><span class="pun">=</span><span class="pln">\lim_</span><span class="pun">{</span><span class="pln">n\to\infty</span><span class="pun">}</span><span class="pln"> \left</span><span class="pun">(</span><span class="pln"> </span><span class="lit">1</span><span class="pun">+</span><span class="pln">\frac</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}{</span><span class="pln">n</span><span class="pun">}</span><span class="pln"> \right</span><span class="pun">)^</span><span class="pln">n \qquad </span><span class="pun">(</span><span class="lit">1</span><span class="pun">)}</span></code></li><li class="L4"><code><span class="pun">}</span></code></li><li class="L5"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="f2iz">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-224-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 31.274ex; height: 8.571ex; vertical-align: -3.707ex; margin: 1px 0px;" viewBox="-5 -2116.2297505067154 13482.12569101977 3691.523675236979"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><rect fill="#2f3542" stroke="none" width="13472" height="3641" x="0" y="-1551"></rect><g transform="translate(99,0)"><g><g transform="translate(500,0)"><g fill="#f1f2f6" stroke="#f1f2f6"><g fill="#f1f2f6" stroke="#f1f2f6"><g fill="#f1f2f6" stroke="#f1f2f6"><g fill="#f1f2f6" stroke="#f1f2f6"><use xlink:href="#MJMATHI-65"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(466,412)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78"></use></g></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(1249,0)"><use xlink:href="#MJMAIN-3D"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(2305,0)"><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(224,0)"><use xlink:href="#MJMAIN-6C"></use><use xlink:href="#MJMAIN-69" x="278" y="0"></use><use xlink:href="#MJMAIN-6D" x="557" y="0"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(0,-601)"><g fill="#f1f2f6" stroke="#f1f2f6"><g fill="#f1f2f6" stroke="#f1f2f6"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(424,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2192"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(1132,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-221E"></use></g></g></g></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(4311,0)"><g fill="#f1f2f6" stroke="#f1f2f6"><use xlink:href="#MJSZ3-28" fill="#f1f2f6" stroke="#f1f2f6"></use><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(736,0)"><use xlink:href="#MJMAIN-31"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(1459,0)"><use xlink:href="#MJMAIN-2B"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(2579,0)"><rect stroke="none" width="720" height="60" x="0" y="220"></rect><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(74,676)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(60,-686)"><use xlink:href="#MJMATHI-6E"></use></g></g><use xlink:href="#MJSZ3-29" fill="#f1f2f6" stroke="#f1f2f6" x="3420" y="-1"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(4156,1177)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E"></use></g></g><g fill="#f1f2f6" stroke="#f1f2f6"></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(10993,0)"><use xlink:href="#MJMAIN-28"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(11382,0)"><use xlink:href="#MJMAIN-31"></use></g><g fill="#f1f2f6" stroke="#f1f2f6" transform="translate(11883,0)"><use xlink:href="#MJMAIN-29"></use></g></g></g></g></g></g><line stroke="rgb(241, 242, 246)" stroke-width="99.74" x2="49.87111969111969" x1="49.87111969111969" y1="0" y2="3641" transform="translate(-5,-1551)"></line><line stroke="rgb(241, 242, 246)" stroke-width="99.74" x2="49.87111969111969" x1="49.87111969111969" y1="0" y2="3641" transform="translate(13377,-1551)"></line><line stroke="rgb(241, 242, 246)" stroke-width="99.74" x1="0" y2="49.87111969111969" y1="49.87111969111969" x2="13472" transform="translate(0,1996)"></line><line stroke="rgb(241, 242, 246)" stroke-width="99.74" x1="0" y2="49.87111969111969" y1="49.87111969111969" x2="13472" transform="translate(0,-1556)"></line></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-224">
\bbox[#2f3542, 0.5em, border:2px solid #f1f2f6]{
    \color{#f1f2f6}{e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n \qquad (1)}
}
</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="rtgm" id="15大括号和行标的使用">15．大括号和行标的使用</h2><p data-anchor-id="zcjy">在 <code>\left</code> 和 <code>\right</code> 之后加上要使用的括号来创建自动匹配高度的圆括号 <code>(</code> <code>)</code>，方括号 <code>[</code> <code>]</code> 和花括号 <code>\{</code> <code>\}</code>。 <br>
在每个公式末尾前使用 <code>\tag {行标}</code> 来实现行标。</p><ul data-anchor-id="pwnt">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="ywn9" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">f\left</span><span class="pun">(</span></code></li><li class="L2"><code><span class="pln">   \left</span><span class="pun">[</span><span class="pln"> </span></code></li><li class="L3"><code><span class="pln">     \frac</span><span class="pun">{</span></code></li><li class="L4"><code><span class="pln">       </span><span class="lit">1</span><span class="pun">+</span><span class="pln">\left\{x</span><span class="pun">,</span><span class="pln">y\right\}</span></code></li><li class="L5"><code><span class="pln">     </span><span class="pun">}{</span></code></li><li class="L6"><code><span class="pln">       \left</span><span class="pun">(</span></code></li><li class="L7"><code><span class="pln">          \frac xy </span><span class="pun">+</span><span class="pln"> \frac yx</span></code></li><li class="L8"><code><span class="pln">       \right</span><span class="pun">)</span></code></li><li class="L9"><code><span class="pln">       </span><span class="pun">(</span><span class="pln">u</span><span class="pun">+</span><span class="lit">1</span><span class="pun">)</span></code></li><li class="L0"><code><span class="pln">     </span><span class="pun">}+</span><span class="pln">a</span></code></li><li class="L1"><code><span class="pln">   \right</span><span class="pun">]^{</span><span class="lit">3</span><span class="pun">/</span><span class="lit">2</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\right</span><span class="pun">)</span></code></li><li class="L3"><code><span class="pln">\tag </span><span class="pun">{行标}</span></code></li><li class="L4"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="ugiv">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-225-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 93.591ex; height: 10.656ex; vertical-align: -4.865ex; margin: 1px 0px;" viewBox="0 -2543.7470921765457 40295.86471042471 4587.494184353091"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(13355,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMATHI-66"></use><g transform="translate(550,0)"><g transform="translate(0,2523)"><use xlink:href="#MJSZ4-239B" x="0" y="-1156"></use><g transform="translate(0,-2766.659369413247) scale(1,1.6442870203162803)"><use xlink:href="#MJSZ4-239C"></use></g><use xlink:href="#MJSZ4-239D" x="0" y="-3903"></use></g><g transform="translate(875,0)"><g transform="translate(0,2265)"><use xlink:href="#MJSZ4-23A1" x="0" y="-1155"></use><g transform="translate(0,-2279.4791819018637) scale(1,0.8764165537344343)"><use xlink:href="#MJSZ4-23A2"></use></g><use xlink:href="#MJSZ4-23A3" x="0" y="-3387"></use></g><g transform="translate(787,0)"><rect stroke="none" width="7142" height="60" x="0" y="220"></rect><g transform="translate(1451,715)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-2B" x="722" y="0"></use><g transform="translate(1723,0)"><use xlink:href="#MJMAIN-7B"></use><use xlink:href="#MJMATHI-78" x="500" y="0"></use><use xlink:href="#MJMAIN-2C" x="1073" y="0"></use><use xlink:href="#MJMATHI-79" x="1518" y="0"></use><use xlink:href="#MJMAIN-7D" x="2015" y="0"></use></g></g><g transform="translate(60,-1116)"><use xlink:href="#MJSZ2-28"></use><g transform="translate(717,0)"><rect stroke="none" width="524" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="84" y="582"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-79" x="122" y="-488"></use></g><use xlink:href="#MJMAIN-2B" x="1584" y="0"></use><g transform="translate(2705,0)"><rect stroke="none" width="524" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-79" x="122" y="776"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="84" y="-488"></use></g><use xlink:href="#MJSZ2-29" x="3350" y="-1"></use><use xlink:href="#MJMAIN-28" x="3947" y="0"></use><use xlink:href="#MJMATHI-75" x="4337" y="0"></use><use xlink:href="#MJMAIN-2B" x="5131" y="0"></use><use xlink:href="#MJMAIN-31" x="6132" y="0"></use><use xlink:href="#MJMAIN-29" x="6633" y="0"></use></g></g><use xlink:href="#MJMAIN-2B" x="8272" y="0"></use><use xlink:href="#MJMATHI-61" x="9272" y="0"></use><g transform="translate(9802,2265)"><use xlink:href="#MJSZ4-23A4" x="0" y="-1155"></use><g transform="translate(0,-2279.4791819018637) scale(1,0.8764165537344343)"><use xlink:href="#MJSZ4-23A5"></use></g><use xlink:href="#MJSZ4-23A6" x="0" y="-3387"></use></g><g transform="translate(10469,1992)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2F" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1001" y="0"></use></g></g><g transform="translate(12507,2523)"><use xlink:href="#MJSZ4-239E" x="0" y="-1155"></use><g transform="translate(0,-2766.6401077760083) scale(1,1.6458921567528775)"><use xlink:href="#MJSZ4-239F"></use></g><use xlink:href="#MJSZ4-23A0" x="0" y="-3903"></use></g></g></g></g><g transform="translate(37120,0)"><g id="mjx-eqn-行标"><use xlink:href="#MJMAIN-28"></use><g transform="translate(389,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">行</text></g><g transform="translate(1187,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">标</text></g><use xlink:href="#MJMAIN-29" x="1985" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-225">
f\left(
   \left[ 
     \frac{
       1+\left\{x,y\right\}
     }{
       \left(
          \frac xy + \frac yx
       \right)
       (u+1)
     }+a
   \right]^{3/2}
\right)
\tag {行标}
</script></li>
</ul><p data-anchor-id="oc4n">如果你需要在不同的行显示对应括号，可以在每一行对应处使用 <code>\left.</code> 或 <code>\right.</code> 来放一个“不存在的括号”。</p><ul data-anchor-id="mnd6">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="b1y6" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">align</span><span class="pun">*}</span></code></li><li class="L2"><code><span class="pln">    a</span><span class="pun">=&amp;</span><span class="pln">\left</span><span class="pun">(</span><span class="lit">1</span><span class="pun">+</span><span class="lit">2</span><span class="pun">+</span><span class="lit">3</span><span class="pun">+</span><span class="pln"> \cdots \right</span><span class="pun">.</span><span class="pln"> \\</span></code></li><li class="L3"><code><span class="pln">      </span><span class="pun">&amp;</span><span class="pln">\cdots</span><span class="pun">+</span><span class="pln">\left</span><span class="pun">.</span><span class="pln"> \infty</span><span class="pun">-</span><span class="lit">2</span><span class="pun">+</span><span class="pln">\infty</span><span class="pun">-</span><span class="lit">1</span><span class="pun">+</span><span class="pln">\infty\right</span><span class="pun">)</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">align</span><span class="pun">*}</span></code></li><li class="L5"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="2au2">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-226-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 32.201ex; height: 5.56ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1446.5516853480244 13861.961235988982 2393.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(0,626)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMAIN-3D" x="807" y="0"></use></g></g><g transform="translate(1848,0)"><g transform="translate(0,626)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-2B" x="1112" y="0"></use><use xlink:href="#MJMAIN-32" x="2112" y="0"></use><use xlink:href="#MJMAIN-2B" x="2835" y="0"></use><use xlink:href="#MJMAIN-33" x="3836" y="0"></use><use xlink:href="#MJMAIN-2B" x="4559" y="0"></use><use xlink:href="#MJMAIN-22EF" x="5559" y="0"></use></g><g transform="translate(0,-676)"><use xlink:href="#MJMAIN-22EF"></use><use xlink:href="#MJMAIN-2B" x="1394" y="0"></use><g transform="translate(2395,0)"><use xlink:href="#MJMAIN-221E"></use><use xlink:href="#MJMAIN-2212" x="1222" y="0"></use><use xlink:href="#MJMAIN-32" x="2223" y="0"></use><use xlink:href="#MJMAIN-2B" x="2946" y="0"></use><use xlink:href="#MJMAIN-221E" x="3946" y="0"></use><use xlink:href="#MJMAIN-2212" x="5169" y="0"></use><use xlink:href="#MJMAIN-31" x="6170" y="0"></use><use xlink:href="#MJMAIN-2B" x="6893" y="0"></use><use xlink:href="#MJMAIN-221E" x="7893" y="0"></use><use xlink:href="#MJMAIN-29" x="8894" y="0"></use></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-226">
\begin{align*}
    a=&\left(1+2+3+ \cdots \right. \\
      &\cdots+\left. \infty-2+\infty-1+\infty\right)
\end{align*}
</script></li>
</ul><p data-anchor-id="45cf">如果你需要将大括号里面显示的分隔符也变大，可以使用 <code>\middle</code> 命令，此处分别使用单竖线 <code>|</code> 和双竖线 <code>\|</code> 。</p><ul data-anchor-id="wixv">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="3apb" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\left\langle  </span></code></li><li class="L2"><code><span class="pln">    q \; \middle</span><span class="pun">|</span></code></li><li class="L3"><code><span class="pln">        \frac</span><span class="pun">{</span><span class="pln">\frac xy</span><span class="pun">}{</span><span class="pln">\frac uv</span><span class="pun">}</span></code></li><li class="L4"><code><span class="pln">    \middle\| p </span></code></li><li class="L5"><code><span class="pln">\right\rangle</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="lt1d">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-227-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.857ex; height: 7.066ex; vertical-align: -3.012ex; margin: 1px 0px;" viewBox="0 -1770.0516853480244 5510.818632229299 3040.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ4-27E8" x="0" y="-1"></use><use xlink:href="#MJMATHI-71" x="806" y="0"></use><g transform="translate(1544,1680)"><use xlink:href="#MJMAIN-2223" x="0" y="-751"></use><g transform="translate(0,-1670.3765694120489) scale(1,0.957891570455458)"><use xlink:href="#MJMAIN-2223"></use></g><use xlink:href="#MJMAIN-2223" x="0" y="-2611"></use></g><g transform="translate(2109,0)"><rect stroke="none" width="644" height="60" x="0" y="220"></rect><g transform="translate(180,955)"><rect stroke="none" width="524" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-78" x="84" y="582"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-79" x="122" y="-488"></use></g><g transform="translate(270,-690)"><rect stroke="none" width="524" height="60" x="0" y="220"></rect><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-75" x="84" y="582"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-76" x="128" y="-488"></use></g></g><g transform="translate(3422,1680)"><use xlink:href="#MJMAIN-2225" x="0" y="-751"></use><g transform="translate(0,-1669.1596267280052) scale(1,0.9549395828601931)"><use xlink:href="#MJMAIN-2225"></use></g><use xlink:href="#MJMAIN-2225" x="0" y="-2610"></use></g><use xlink:href="#MJMATHI-70" x="4200" y="0"></use><use xlink:href="#MJSZ4-27E9" x="4704" y="-1"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-227">
\left\langle  
    q \; \middle|
        \frac{\frac xy}{\frac uv}
    \middle\| p 
\right\rangle
</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="26fi" id="16其它命令">16．其它命令</h2><div class="md-section-divider"></div><h3 data-anchor-id="2xjw" id="1定义新的运算符-operatorname">(1)．定义新的运算符 \operatorname</h3><p data-anchor-id="gfib">当需要使用的运算符不在 MathJax 的内置库中时，程序可能会报错或产生错误的渲染结果。此时可以使用 <code>\operatorname</code> 命令定义一个新的运算符号。</p><ul data-anchor-id="q5ey">
<li>反例： </li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xb9y" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Error</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="typ">Wrong</span><span class="pln"> rendering</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \arsinh</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> arsinh</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    \Res_</span><span class="pun">{</span><span class="pln">z</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="typ">Res_</span><span class="pun">{</span><span class="pln">z</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">z</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="pln">z</span><span class="pun">}=</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="l49n">
<li>显示：  <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-228-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 33.707ex; height: 14.71ex; vertical-align: -6.834ex; margin: 1px 0px;" viewBox="0 -3426.6856964876374 14490.48728009634 6353.371392975275"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(1085,2391)"><use xlink:href="#MJMAIN-45"></use><use xlink:href="#MJMAIN-72" x="681" y="0"></use><use xlink:href="#MJMAIN-72" x="1074" y="0"></use><use xlink:href="#MJMAIN-6F" x="1466" y="0"></use><use xlink:href="#MJMAIN-72" x="1967" y="0"></use></g><g transform="translate(0,40)"><g fill="red" stroke="red"><use xlink:href="#MJMAIN-5C"></use><use xlink:href="#MJMAIN-61" x="500" y="0"></use><use xlink:href="#MJMAIN-72" x="1001" y="0"></use><use xlink:href="#MJMAIN-73" x="1393" y="0"></use><use xlink:href="#MJMAIN-69" x="1788" y="0"></use><use xlink:href="#MJMAIN-6E" x="2066" y="0"></use><use xlink:href="#MJMAIN-68" x="2623" y="0"></use></g><use xlink:href="#MJMAIN-28" x="3179" y="0"></use><use xlink:href="#MJMATHI-78" x="3569" y="0"></use><use xlink:href="#MJMAIN-29" x="4141" y="0"></use></g><g transform="translate(559,-1955)"><g fill="red" stroke="red"><use xlink:href="#MJMAIN-5C"></use><use xlink:href="#MJMAIN-52" x="500" y="0"></use><use xlink:href="#MJMAIN-65" x="1237" y="0"></use><use xlink:href="#MJMAIN-73" x="1681" y="0"></use></g><g transform="translate(2076,-287)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="468" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1247" y="0"></use></g></g></g><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="6313" transform="translate(5415,-2907)"></line><g transform="translate(5915,0)"><g transform="translate(244,2391)"><use xlink:href="#MJMAIN-57"></use><use xlink:href="#MJMAIN-72" x="1028" y="0"></use><use xlink:href="#MJMAIN-6F" x="1421" y="0"></use><use xlink:href="#MJMAIN-6E" x="1921" y="0"></use><use xlink:href="#MJMAIN-67" x="2478" y="0"></use><use xlink:href="#MJMAIN-20" x="2978" y="0"></use><use xlink:href="#MJMAIN-72" x="3229" y="0"></use><use xlink:href="#MJMAIN-65" x="3621" y="0"></use><use xlink:href="#MJMAIN-6E" x="4066" y="0"></use><use xlink:href="#MJMAIN-64" x="4622" y="0"></use><use xlink:href="#MJMAIN-65" x="5179" y="0"></use><use xlink:href="#MJMAIN-72" x="5623" y="0"></use><use xlink:href="#MJMAIN-69" x="6016" y="0"></use><use xlink:href="#MJMAIN-6E" x="6294" y="0"></use><use xlink:href="#MJMAIN-67" x="6851" y="0"></use></g><g transform="translate(1758,40)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-72" x="529" y="0"></use><use xlink:href="#MJMATHI-73" x="981" y="0"></use><use xlink:href="#MJMATHI-69" x="1450" y="0"></use><use xlink:href="#MJMATHI-6E" x="1796" y="0"></use><use xlink:href="#MJMATHI-68" x="2396" y="0"></use><use xlink:href="#MJMAIN-28" x="2973" y="0"></use><use xlink:href="#MJMATHI-78" x="3362" y="0"></use><use xlink:href="#MJMAIN-29" x="3935" y="0"></use></g><g transform="translate(0,-1955)"><use xlink:href="#MJMATHI-52"></use><use xlink:href="#MJMATHI-65" x="759" y="0"></use><g transform="translate(1226,0)"><use xlink:href="#MJMATHI-73"></use><g transform="translate(469,-150)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="468" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1247" y="0"></use></g></g><g transform="translate(3031,0)"><g transform="translate(120,0)"><rect stroke="none" width="2734" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="1117" y="676"></use><g transform="translate(60,-726)"><use xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="663" y="408"></use><use xlink:href="#MJMAIN-2212" x="1145" y="0"></use><use xlink:href="#MJMATHI-7A" x="2146" y="0"></use></g></g><use xlink:href="#MJMAIN-3D" x="3252" y="0"></use><use xlink:href="#MJMAIN-31" x="4308" y="0"></use></g></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="14156" transform="translate(0,1672)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-228">\begin{array}{c|c}
    \mathrm{Error} & \text{Wrong rendering} \\
    \hline \\
    \arsinh(x) & arsinh(x) \\
    \Res_{z=1} & Res_{z=1}{\frac{1}{z^2-z}=1} \\
\end{array}</script></li>
</ul><p data-anchor-id="da9h">使用 <code>\operatorname{运算符}{式子}</code> 来生成一个普通运算，或使用 <code>\operatorname*{运算符}_{下标}^{上标}{式子}</code> 来生成一个含上下标的自定义运算。</p><ul data-anchor-id="v2mn">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="hrpo" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \text</span><span class="pun">{</span><span class="typ">Normal</span><span class="pln"> </span><span class="typ">Operator</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="typ">Operator</span><span class="pln"> </span><span class="kwd">with</span><span class="pln"> label above </span><span class="kwd">and</span><span class="pln"> below</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \scriptsize\text</span><span class="pun">{</span><span class="pln">\operatorname</span><span class="pun">{</span><span class="pln">arsinh</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">}}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \scriptsize\text</span><span class="pun">{</span><span class="pln">\operatorname</span><span class="pun">*{</span><span class="typ">Res</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">z</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">z</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="pln">z</span><span class="pun">}=</span><span class="lit">1</span><span class="pun">}}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    \operatorname</span><span class="pun">{</span><span class="pln">arsinh</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \operatorname</span><span class="pun">*{</span><span class="typ">Res</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">z</span><span class="pun">=</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="pln">z</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="pln">z</span><span class="pun">}=</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="q2sz">
<li>显示：  <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-229-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 60.811ex; height: 14.942ex; vertical-align: -6.95ex; margin: 1px 0px;" viewBox="0 -3459.8284375608573 26183.86123598898 6419.656875121715"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(371,2424)"><use xlink:href="#MJMAIN-4E"></use><use xlink:href="#MJMAIN-6F" x="750" y="0"></use><use xlink:href="#MJMAIN-72" x="1251" y="0"></use><use xlink:href="#MJMAIN-6D" x="1643" y="0"></use><use xlink:href="#MJMAIN-61" x="2477" y="0"></use><use xlink:href="#MJMAIN-6C" x="2977" y="0"></use><use xlink:href="#MJMAIN-20" x="3256" y="0"></use><use xlink:href="#MJMAIN-4F" x="3506" y="0"></use><use xlink:href="#MJMAIN-70" x="4285" y="0"></use><use xlink:href="#MJMAIN-65" x="4841" y="0"></use><use xlink:href="#MJMAIN-72" x="5286" y="0"></use><use xlink:href="#MJMAIN-61" x="5678" y="0"></use><use xlink:href="#MJMAIN-74" x="6179" y="0"></use><use xlink:href="#MJMAIN-6F" x="6568" y="0"></use><use xlink:href="#MJMAIN-72" x="7069" y="0"></use></g><g transform="translate(0,1224)"><use transform="scale(0.7)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-6F" x="500" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-70" x="1001" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-65" x="1557" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-72" x="2002" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-61" x="2394" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-74" x="2895" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-6F" x="3284" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-72" x="3785" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-6E" x="4177" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-61" x="4734" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-6D" x="5234" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-65" x="6068" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7B" x="6512" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-61" x="7013" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-72" x="7513" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-73" x="7906" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-69" x="8300" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-6E" x="8579" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-68" x="9135" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7D" x="9692" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7B" x="10192" y="0"></use><use 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y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7B" x="16961" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7A" x="17461" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-5E" x="17906" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-32" x="18406" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-2D" x="18907" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7A" x="19240" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7D" x="19685" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-3D" x="20185" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-31" x="20964" y="0"></use><use transform="scale(0.7)" xlink:href="#MJMAIN-7D" x="21464" y="0"></use></g><g transform="translate(4653,-1955)"><use xlink:href="#MJMAIN-52"></use><use xlink:href="#MJMAIN-65" x="736" y="0"></use><use xlink:href="#MJMAIN-73" x="1181" y="0"></use><g transform="translate(169,-662)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3D" x="468" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="1247" y="0"></use></g><g transform="translate(1742,0)"><g transform="translate(120,0)"><rect stroke="none" width="2734" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="1117" y="676"></use><g transform="translate(60,-726)"><use xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="663" y="408"></use><use xlink:href="#MJMAIN-2212" x="1145" y="0"></use><use xlink:href="#MJMATHI-7A" x="2146" y="0"></use></g></g><use xlink:href="#MJMAIN-3D" x="3252" y="0"></use><use xlink:href="#MJMAIN-31" x="4308" y="0"></use></g></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="25849" transform="translate(0,403)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-229">\begin{array}{c|c}
    \text{Normal Operator} & \text{Operator with label above and below} \\
    \scriptsize\text{\operatorname{arsinh}{x}} & \scriptsize\text{\operatorname*{Res}_{z=1}{\frac{1}{z^2-z}=1}} \\[2ex]
    \hline \\
    \operatorname{arsinh}{x} & \operatorname*{Res}_{z=1}{\frac{1}{z^2-z}=1}
\end{array}</script></li>
</ul><p data-anchor-id="cb04">查询<a href="http://meta.math.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference/15077#15077" target="_blank">关于此命令的定义</a>和<a href="http://meta.math.stackexchange.com/search?q=operatorname" target="_blank">关于此命令的讨论</a>来进一步了解此命令。</p><div class="md-section-divider"></div><h3 data-anchor-id="fc7a" id="2添加注释文字-text">(2)．添加注释文字 \text</h3><p data-anchor-id="ds9v">在 <code>\text {文字}</code> 中仍可以使用 <code>$公式$</code> 插入其它公式。</p><ul data-anchor-id="avna">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="e7ru" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ f</span><span class="pun">(</span><span class="pln">n</span><span class="pun">)=</span><span class="pln"> \begin</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span><span class="pln"> n</span><span class="pun">/</span><span class="lit">2</span><span class="pun">,</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text </span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> even</span><span class="pun">}</span><span class="pln"> \\ </span><span class="lit">3n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">,</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> odd</span><span class="pun">}</span><span class="pln"> \end</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="ja5b">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-230-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.232ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 13020.46123598898 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><use xlink:href="#MJMATHI-6E" x="940" y="0"></use><use xlink:href="#MJMAIN-29" x="1540" y="0"></use><use xlink:href="#MJMAIN-3D" x="2207" y="0"></use><g transform="translate(3264,0)"><use xlink:href="#MJSZ3-7B"></use><g transform="translate(917,0)"><g transform="translate(-16,0)"><g transform="translate(0,550)"><use xlink:href="#MJMATHI-6E"></use><use xlink:href="#MJMAIN-2F" x="600" y="0"></use><use xlink:href="#MJMAIN-32" x="1101" y="0"></use><use xlink:href="#MJMAIN-2C" x="1601" y="0"></use></g><g transform="translate(0,-650)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMATHI-6E" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1323" y="0"></use><use xlink:href="#MJMAIN-31" x="2323" y="0"></use><use xlink:href="#MJMAIN-2C" x="2824" y="0"></use></g></g><g transform="translate(4087,0)"><g transform="translate(0,550)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-65" x="1174" y="0"></use><use xlink:href="#MJMAIN-76" x="1618" y="0"></use><use xlink:href="#MJMAIN-65" x="2147" y="0"></use><use xlink:href="#MJMAIN-6E" x="2591" y="0"></use></g></g><g transform="translate(0,-650)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-6F" x="1174" y="0"></use><use xlink:href="#MJMAIN-64" x="1674" y="0"></use><use xlink:href="#MJMAIN-64" x="2231" y="0"></use></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-230"> f(n)= \begin{cases} n/2, & \text {if $n$ is even} \\ 3n+1, & \text{if $n$ is odd} \end{cases} </script></li>
</ul><div class="md-section-divider"></div><h3 data-anchor-id="9p9r" id="3在字符间加入空格">(3)．在字符间加入空格</h3><p data-anchor-id="oa31">有四种宽度的空格可以使用： <code>\,</code>、<code>\;</code>、<code>\quad</code> 和 <code>\qquad</code>，灵活使用 <code>\text{n个空格}</code> 也可以在任意位置实现空格。 <br>
同时存在一种负空格 <code>\!</code> 用来减小字符间距，一般在物理单位中使用。 <br>
<strong>反复使用 <code>\!</code> 命令能够实现不同元素的叠加渲染，如<span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-578-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.475ex; height: 2.201ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="-665.8333333333331 -736.0516853480245 1500.5 972.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2227"></use><use xlink:href="#MJMAIN-25EF" x="-166" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-578">\wedge\!\!\!\!\!\!\!\!\;\bigcirc</script> 和 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-579-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.317ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="-332.83333333333326 -771.0516853480245 1000.7222222222222 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-7D"></use><use xlink:href="#MJMAIN-F7" x="-111" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-579"> \}\!\!\!\!\!\div </script></strong></p><ul data-anchor-id="cesu">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="o7ux" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \text</span><span class="pun">{</span><span class="typ">Spaces</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="typ">Negative</span><span class="pln"> </span><span class="typ">Space</span><span class="pln"> </span><span class="kwd">in</span><span class="pln"> </span><span class="typ">Units</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \overbrace</span><span class="pun">{</span><span class="pln">a \! b</span><span class="pun">}^{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">\!</span><span class="pun">}}</span><span class="pln"> \mid \underbrace</span><span class="pun">{</span><span class="pln">ab</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">\rm</span><span class="pun">{</span><span class="kwd">default</span><span class="pun">}}</span><span class="pln"> \mid \overbrace</span><span class="pun">{</span><span class="pln">a \, b</span><span class="pun">}^{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">\,</span><span class="pun">}}</span><span class="pln"> \mid \underbrace</span><span class="pun">{</span><span class="pln">a \; b</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">\;</span><span class="pun">}}</span><span class="pln"> \mid \overbrace</span><span class="pun">{</span><span class="pln">a \quad b</span><span class="pun">}^{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">\quad</span><span class="pun">}}</span><span class="pln"> \mid \underbrace</span><span class="pun">{</span><span class="pln">a \qquad b</span><span class="pun">}</span><span class="pln">_</span><span class="pun">{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">\qquad</span><span class="pun">}}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="pln">N</span><span class="pun">}</span><span class="pln">\!\cdot\!\mathrm</span><span class="pun">{</span><span class="pln">m</span><span class="pun">}</span><span class="pln"> \mid \mathrm</span><span class="pun">{</span><span class="pln">s</span><span class="pun">}</span><span class="pln">\!\cdot\!\mathrm</span><span class="pun">{</span><span class="pln">A</span><span class="pun">}</span><span class="pln"> \mid \mathrm</span><span class="pun">{</span><span class="pln">kg</span><span class="pun">}</span><span class="pln">\!\cdot\!\mathrm</span><span class="pun">{</span><span class="pln">m</span><span class="pun">}^</span><span class="lit">2</span><span class="pln"> \\ </span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="5p31">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-637-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 66.602ex; height: 16.216ex; vertical-align: -7.645ex; margin: 1px 0px;" viewBox="0 -3729.793680096945 28668.009375273276 6959.58736019389"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(6678,2694)"><use xlink:href="#MJMAIN-53"></use><use xlink:href="#MJMAIN-70" x="556" y="0"></use><use xlink:href="#MJMAIN-61" x="1113" y="0"></use><use xlink:href="#MJMAIN-63" x="1613" y="0"></use><use xlink:href="#MJMAIN-65" x="2058" y="0"></use><use xlink:href="#MJMAIN-73" x="2502" y="0"></use></g><g transform="translate(0,-1280)"><g transform="translate(432,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="362" y="0"></use></g><g transform="translate(0,1020)"><use xlink:href="#MJSZ4-E150" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E153"></use><use xlink:href="#MJSZ4-E152" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E151" x="1207" y="0"></use></g><g transform="translate(553,1742)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-21" x="500" y="0"></use></g><use xlink:href="#MJMAIN-2223" x="1935" y="0"></use><g transform="translate(2492,0)"><g transform="translate(266,0)"><g transform="translate(349,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="529" y="0"></use></g><g transform="translate(0,-526)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E153" x="1207" y="0"></use></g></g><g transform="translate(0,-1406)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-65" x="556" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-66" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-61" x="1373" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="1874" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C" x="2430" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-74" x="2709" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="4960" y="0"></use><g transform="translate(5517,0)"><g transform="translate(266,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="696" y="0"></use></g><g transform="translate(0,1020)"><use xlink:href="#MJSZ4-E150" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E153"></use><use xlink:href="#MJSZ4-E152" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E151" x="1207" y="0"></use></g><g transform="translate(553,1742)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2C" x="500" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="7453" y="0"></use><g transform="translate(8009,0)"><g transform="translate(210,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="807" y="0"></use></g><g transform="translate(0,-526)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(390,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><use xlink:href="#MJSZ4-E153" x="1207" y="0"></use></g><g transform="translate(553,-1438)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-3B" x="500" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="9945" y="0"></use><g transform="translate(10501,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="1529" y="0"></use><g transform="translate(12,1020)"><use xlink:href="#MJSZ4-E150" x="23" y="0"></use><g transform="translate(485.01785714285717,0) scale(0.10714285714285714,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(529,0)"><use xlink:href="#MJSZ4-E153"></use><use xlink:href="#MJSZ4-E152" x="450" y="0"></use></g><g transform="translate(1431.017857142857,0) scale(0.10714285714285714,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E151" x="1484" y="0"></use></g><g transform="translate(45,1742)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-71" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="1029" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-61" x="1585" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64" x="2086" y="0"></use></g></g><use xlink:href="#MJMAIN-2223" x="12738" y="0"></use><g transform="translate(13294,0)"><use xlink:href="#MJMATHI-61"></use><use xlink:href="#MJMATHI-62" x="2529" y="0"></use><g transform="translate(12,-526)"><use xlink:href="#MJSZ4-E152" x="23" y="0"></use><g transform="translate(496.32738095238096,0) scale(1.2976190476190477,1)"><use xlink:href="#MJSZ4-E154"></use></g><g transform="translate(1029,0)"><use xlink:href="#MJSZ4-E151"></use><use xlink:href="#MJSZ4-E150" x="450" y="0"></use></g><g transform="translate(1942.327380952381,0) scale(1.2976190476190477,1)"><use xlink:href="#MJSZ4-E154"></use></g><use xlink:href="#MJSZ4-E153" x="2484" y="0"></use></g><g transform="translate(358,-1438)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-5C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-71" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-71" x="1029" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-75" x="1557" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-61" x="2114" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-64" x="2614" y="0"></use></g></g></g></g><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="6919" transform="translate(17138,-3210)"></line><g transform="translate(17638,0)"><g transform="translate(0,2694)"><use xlink:href="#MJMAIN-4E"></use><use xlink:href="#MJMAIN-65" x="750" y="0"></use><use xlink:href="#MJMAIN-67" x="1195" y="0"></use><use xlink:href="#MJMAIN-61" x="1695" y="0"></use><use xlink:href="#MJMAIN-74" x="2196" y="0"></use><use xlink:href="#MJMAIN-69" x="2585" y="0"></use><use xlink:href="#MJMAIN-76" x="2864" y="0"></use><use xlink:href="#MJMAIN-65" x="3392" y="0"></use><use xlink:href="#MJMAIN-20" x="3837" y="0"></use><use xlink:href="#MJMAIN-53" x="4087" y="0"></use><use xlink:href="#MJMAIN-70" x="4644" y="0"></use><use xlink:href="#MJMAIN-61" x="5200" y="0"></use><use xlink:href="#MJMAIN-63" x="5701" y="0"></use><use xlink:href="#MJMAIN-65" x="6145" y="0"></use><use xlink:href="#MJMAIN-20" x="6590" y="0"></use><use xlink:href="#MJMAIN-69" x="6840" y="0"></use><use xlink:href="#MJMAIN-6E" x="7119" y="0"></use><use xlink:href="#MJMAIN-20" x="7675" y="0"></use><use xlink:href="#MJMAIN-55" x="7926" y="0"></use><use xlink:href="#MJMAIN-6E" x="8676" y="0"></use><use xlink:href="#MJMAIN-69" x="9233" y="0"></use><use xlink:href="#MJMAIN-74" x="9511" y="0"></use><use xlink:href="#MJMAIN-73" x="9901" y="0"></use></g><g transform="translate(1206,-1280)"><use xlink:href="#MJMAIN-4E"></use><use xlink:href="#MJMAIN-22C5" x="806" y="0"></use><use xlink:href="#MJMAIN-6D" x="1140" y="0"></use><use xlink:href="#MJMAIN-2223" x="2251" y="0"></use><use xlink:href="#MJMAIN-73" x="2807" y="0"></use><use xlink:href="#MJMAIN-22C5" x="3257" y="0"></use><use xlink:href="#MJMAIN-41" x="3591" y="0"></use><use xlink:href="#MJMAIN-2223" x="4620" y="0"></use><g transform="translate(5176,0)"><use xlink:href="#MJMAIN-6B"></use><use xlink:href="#MJMAIN-67" x="528" y="0"></use></g><use xlink:href="#MJMAIN-22C5" x="6260" y="0"></use><g transform="translate(6594,0)"><use xlink:href="#MJMAIN-6D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1178" y="583"></use></g></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="28334" transform="translate(0,1975)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-637">\begin{array}{c|c}
    \text{Spaces} & \text{Negative Space in Units} \\
    \hline \\
    \overbrace{a \! b}^{\text{\!}} \mid \underbrace{ab}_{\rm{default}} \mid \overbrace{a \, b}^{\text{\,}} \mid \underbrace{a \; b}_{\text{\;}} \mid \overbrace{a \quad b}^{\text{\quad}} \mid \underbrace{a \qquad b}_{\text{\qquad}} & \mathrm{N}\!\cdot\!\mathrm{m} \mid \mathrm{s}\!\cdot\!\mathrm{A} \mid \mathrm{kg}\!\cdot\!\mathrm{m}^2 \\ 
\end{array}</script></li>
</ul><p data-anchor-id="fcuh">一些常见的公式单位可表达如下：</p><ul data-anchor-id="r0gm">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="5l2i" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$ \mu_0</span><span class="pun">=</span><span class="lit">4</span><span class="pln">\pi\times10</span><span class="pun">^{-</span><span class="lit">7</span><span class="pun">}</span><span class="pln"> \ \left</span><span class="pun">.</span><span class="pln">\mathrm</span><span class="pun">{</span><span class="pln">\mathrm</span><span class="pun">{</span><span class="pln">T</span><span class="pun">}</span><span class="pln">\!\cdot\!\mathrm</span><span class="pun">{</span><span class="pln">m</span><span class="pun">}}</span><span class="pln">\middle</span><span class="pun">/</span><span class="pln">\mathrm</span><span class="pun">{</span><span class="pln">A</span><span class="pun">}</span><span class="pln">\right</span><span class="pun">.</span><span class="pln"> $$</span></code></li><li class="L1"><code><span class="pln">$$ </span><span class="lit">180</span><span class="pun">^</span><span class="pln">\circ</span><span class="pun">=</span><span class="pln">\pi \ \mathrm</span><span class="pun">{</span><span class="pln">rad</span><span class="pun">}</span><span class="pln"> $$</span></code></li><li class="L2"><code><span class="pln">$$ \mathrm</span><span class="pun">{</span><span class="pln">N_A</span><span class="pun">}</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="lit">6.022</span><span class="pln">\times10</span><span class="pun">^{</span><span class="lit">23</span><span class="pun">}</span><span class="pln"> \ \mathrm</span><span class="pun">{</span><span class="pln">mol</span><span class="pun">}^{-</span><span class="lit">1</span><span class="pun">}</span><span class="pln"> $$</span></code></li></ol></pre><ul data-anchor-id="urx0">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-526-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 23.514ex; height: 2.78ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -911.6549762113173 10140.907628232573 1182.706661559342"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-3BC"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="853" y="-213"></use><use xlink:href="#MJMAIN-3D" x="1335" y="0"></use><use xlink:href="#MJMAIN-34" x="2391" y="0"></use><use xlink:href="#MJMATHI-3C0" x="2891" y="0"></use><use xlink:href="#MJMAIN-D7" x="3687" y="0"></use><g transform="translate(4688,0)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-30" x="500" y="0"></use><g transform="translate(1001,412)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-37" x="778" y="0"></use></g></g><use xlink:href="#MJMAIN-20" x="6693" y="0"></use><g transform="translate(6944,0)"><use xlink:href="#MJMAIN-54"></use><use xlink:href="#MJMAIN-22C5" x="778" y="0"></use><use xlink:href="#MJMAIN-6D" x="1112" y="0"></use><use xlink:href="#MJMAIN-2F" x="1945" y="0"></use><use xlink:href="#MJMAIN-41" x="2446" y="0"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-526"> \mu_0=4\pi\times10^{-7} \ \left.\mathrm{\mathrm{T}\!\cdot\!\mathrm{m}}\middle/\mathrm{A}\right. </script> <span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-527-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 12.973ex; height: 1.853ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -747.6062029760382 5562.962499539422 790.6578883240626"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-38" x="500" y="0"></use><use xlink:href="#MJMAIN-30" x="1001" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2218" x="2123" y="583"></use><use xlink:href="#MJMAIN-3D" x="2233" y="0"></use><use xlink:href="#MJMATHI-3C0" x="3289" y="0"></use><use xlink:href="#MJMAIN-20" x="3862" y="0"></use><g transform="translate(4113,0)"><use xlink:href="#MJMAIN-72"></use><use xlink:href="#MJMAIN-61" x="392" y="0"></use><use xlink:href="#MJMAIN-64" x="893" y="0"></use></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-527"> 180^\circ=\pi \ \mathrm{rad} </script> <span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-528-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 25.251ex; height: 2.548ex; vertical-align: -0.463ex; margin: 1px 0px;" viewBox="0 -914.6723233290762 10894.887100385833 1097.983477569042"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-4E"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-41" x="1061" y="-230"></use><use xlink:href="#MJMAIN-3D" x="1658" y="0"></use><g transform="translate(2715,0)"><use xlink:href="#MJMAIN-36"></use><use xlink:href="#MJMAIN-2E" x="500" y="0"></use><use xlink:href="#MJMAIN-30" x="779" y="0"></use><use xlink:href="#MJMAIN-32" x="1279" y="0"></use><use xlink:href="#MJMAIN-32" x="1780" y="0"></use></g><use xlink:href="#MJMAIN-D7" x="5217" y="0"></use><g transform="translate(6218,0)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-30" x="500" y="0"></use><g transform="translate(1001,412)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="500" y="0"></use></g></g><use xlink:href="#MJMAIN-20" x="8027" y="0"></use><g transform="translate(8277,0)"><use xlink:href="#MJMAIN-6D"></use><use xlink:href="#MJMAIN-6F" x="833" y="0"></use><use xlink:href="#MJMAIN-6C" x="1334" y="0"></use><g transform="translate(1612,422)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="778" y="0"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-528"> \mathrm{N_A} = 6.022\times10^{23} \ \mathrm{mol}^{-1} </script></li>
</ul><div class="md-section-divider"></div><h3 data-anchor-id="dh4m" id="4更改文字颜色-color">(4)．更改文字颜色 \color</h3><p data-anchor-id="2zh9">使用 <code>\color{颜色}{文字}</code> 来更改特定的文字颜色。</p><p data-anchor-id="th3d">更改文字颜色需要浏览器支持 ，如果浏览器不知道你所需的颜色，那么文字将被渲染为黑色。对于较旧的浏览器（HTML4 &amp; CSS2），以下颜色是被支持的：</p><table data-anchor-id="076s" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
 <th style="text-align:center;">输入</th>
 <th style="text-align:center;">显示</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;">black</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-232-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="black" stroke="black"><g fill="black" stroke="black"><g fill="black" stroke="black"><use xlink:href="#MJMATHI-74"></use></g><g fill="black" stroke="black" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="black" stroke="black" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="black" stroke="black" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-232">\color{black}{text}</script></td>
 <td style="text-align:center;">grey</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-233-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="grey" stroke="grey"><g fill="grey" stroke="grey"><g fill="grey" stroke="grey"><use xlink:href="#MJMATHI-74"></use></g><g fill="grey" stroke="grey" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="grey" stroke="grey" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="grey" stroke="grey" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-233">\color{grey}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">silver</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-234-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="silver" stroke="silver"><g fill="silver" stroke="silver"><g fill="silver" stroke="silver"><use xlink:href="#MJMATHI-74"></use></g><g fill="silver" stroke="silver" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="silver" stroke="silver" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="silver" stroke="silver" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-234">\color{silver}{text}</script></td>
 <td style="text-align:center;">white</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-235-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="white" stroke="white"><g fill="white" stroke="white"><g fill="white" stroke="white"><use xlink:href="#MJMATHI-74"></use></g><g fill="white" stroke="white" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="white" stroke="white" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="white" stroke="white" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-235">\color{white}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">maroon</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-236-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="maroon" stroke="maroon"><g fill="maroon" stroke="maroon"><g fill="maroon" stroke="maroon"><use xlink:href="#MJMATHI-74"></use></g><g fill="maroon" stroke="maroon" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="maroon" stroke="maroon" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="maroon" stroke="maroon" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-236">\color{maroon}{text}</script></td>
 <td style="text-align:center;">red</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-237-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="red" stroke="red"><g fill="red" stroke="red"><g fill="red" stroke="red"><use xlink:href="#MJMATHI-74"></use></g><g fill="red" stroke="red" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="red" stroke="red" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="red" stroke="red" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-237">\color{red}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">yellow</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-238-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="yellow" stroke="yellow"><g fill="yellow" stroke="yellow"><g fill="yellow" stroke="yellow"><use xlink:href="#MJMATHI-74"></use></g><g fill="yellow" stroke="yellow" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="yellow" stroke="yellow" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="yellow" stroke="yellow" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-238">\color{yellow}{text}</script></td>
 <td style="text-align:center;">lime</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-239-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="lime" stroke="lime"><g fill="lime" stroke="lime"><g fill="lime" stroke="lime"><use xlink:href="#MJMATHI-74"></use></g><g fill="lime" stroke="lime" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="lime" stroke="lime" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="lime" stroke="lime" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-239">\color{lime}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">olive</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-240-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="olive" stroke="olive"><g fill="olive" stroke="olive"><g fill="olive" stroke="olive"><use xlink:href="#MJMATHI-74"></use></g><g fill="olive" stroke="olive" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="olive" stroke="olive" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="olive" stroke="olive" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-240">\color{olive}{text}</script></td>
 <td style="text-align:center;">green</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-241-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="green" stroke="green"><g fill="green" stroke="green"><g fill="green" stroke="green"><use xlink:href="#MJMATHI-74"></use></g><g fill="green" stroke="green" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="green" stroke="green" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="green" stroke="green" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-241">\color{green}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">teal</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-242-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="teal" stroke="teal"><g fill="teal" stroke="teal"><g fill="teal" stroke="teal"><use xlink:href="#MJMATHI-74"></use></g><g fill="teal" stroke="teal" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="teal" stroke="teal" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="teal" stroke="teal" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-242">\color{teal}{text}</script></td>
 <td style="text-align:center;">auqa</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-243-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="auqa" stroke="auqa"><g fill="auqa" stroke="auqa"><g fill="auqa" stroke="auqa"><use xlink:href="#MJMATHI-74"></use></g><g fill="auqa" stroke="auqa" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="auqa" stroke="auqa" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="auqa" stroke="auqa" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-243">\color{auqa}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">blue</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-244-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="blue" stroke="blue"><g fill="blue" stroke="blue"><g fill="blue" stroke="blue"><use xlink:href="#MJMATHI-74"></use></g><g fill="blue" stroke="blue" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="blue" stroke="blue" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="blue" stroke="blue" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-244">\color{blue}{text}</script></td>
 <td style="text-align:center;">navy</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-245-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="navy" stroke="navy"><g fill="navy" stroke="navy"><g fill="navy" stroke="navy"><use xlink:href="#MJMATHI-74"></use></g><g fill="navy" stroke="navy" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="navy" stroke="navy" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="navy" stroke="navy" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-245">\color{navy}{text}</script></td>
</tr>
<tr>
 <td style="text-align:center;">purple</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-246-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="purple" stroke="purple"><g fill="purple" stroke="purple"><g fill="purple" stroke="purple"><use xlink:href="#MJMATHI-74"></use></g><g fill="purple" stroke="purple" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="purple" stroke="purple" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="purple" stroke="purple" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-246">\color{purple}{text}</script></td>
 <td style="text-align:center;">fuchsia</td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-247-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.054ex; height: 1.622ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -647.0516853480245 1762 679.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g fill="fuchsia" stroke="fuchsia"><g fill="fuchsia" stroke="fuchsia"><g fill="fuchsia" stroke="fuchsia"><use xlink:href="#MJMATHI-74"></use></g><g fill="fuchsia" stroke="fuchsia" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="fuchsia" stroke="fuchsia" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="fuchsia" stroke="fuchsia" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-247">\color{fuchsia}{text}</script></td>
</tr>
</tbody></table><p data-anchor-id="hase">对于较新的浏览器（HTML5 &amp; CSS3），HEX 颜色将被支持：</p><p data-anchor-id="h28u">输入 <code>\color {#rgb} {text}</code> 来自定义更多的颜色，其中 <code>#rgb</code> 或 <code>#rrggbb</code> 的 <code>r</code> <code>g</code> <code>b</code> 可输入 <code>0-9</code> 和 <code>a-f</code> 来表示红色、绿色和蓝色的纯度（饱和度）。</p><ul data-anchor-id="z0lq">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="3jxp" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{|</span><span class="pln">rrrrrrrr</span><span class="pun">|}</span><span class="pln">\hline</span></code></li><li class="L1"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">000</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">000</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span></code></li><li class="L2"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">00F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">00F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \\</span></code></li><li class="L3"><code><span class="pln">    </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">0F0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0F0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span></code></li><li class="L4"><code><span class="pln">    </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">0FF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0FF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">F00</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F00</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span></code></li><li class="L6"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">F0F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F0F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">    </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">FF0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FF0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span></code></li><li class="L8"><code><span class="pln">    </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">FFF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FFF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L9"><code><span class="pln">\hline\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="k54o">
<li><p>显示： <br>
<span class="MathJax_Preview"></span></p><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-248-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 54.788ex; height: 11.815ex; vertical-align: -5.444ex; margin: 1px 0px;" viewBox="0 -2785.3286853480245 23574.96123598898 5070.657370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(0,1750)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-650)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g></g><g transform="translate(3486,0)"><g transform="translate(0,1750)"><g fill="#000" stroke="#000"><g fill="#000" stroke="#000"><g fill="#000" stroke="#000"><use xlink:href="#MJMATHI-74"></use></g><g fill="#000" stroke="#000" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#000" stroke="#000" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#000" stroke="#000" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g><g transform="translate(0,-650)"><g fill="#F00" stroke="#F00"><g fill="#F00" stroke="#F00"><g fill="#F00" stroke="#F00"><use xlink:href="#MJMATHI-74"></use></g><g fill="#F00" stroke="#F00" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#F00" stroke="#F00" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#F00" stroke="#F00" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></g><g transform="translate(6248,0)"><g transform="translate(0,550)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-1850)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g></g><g transform="translate(9350,0)"><g transform="translate(0,550)"><g fill="#0F0" stroke="#0F0"><g fill="#0F0" stroke="#0F0"><g fill="#0F0" stroke="#0F0"><use xlink:href="#MJMATHI-74"></use></g><g fill="#0F0" stroke="#0F0" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#0F0" stroke="#0F0" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#0F0" stroke="#0F0" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g><g transform="translate(0,-1850)"><g fill="#FF0" stroke="#FF0"><g fill="#FF0" stroke="#FF0"><g fill="#FF0" stroke="#FF0"><use xlink:href="#MJMATHI-74"></use></g><g fill="#FF0" stroke="#FF0" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#FF0" stroke="#FF0" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#FF0" stroke="#FF0" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></g><g transform="translate(12112,0)"><g transform="translate(0,1750)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-46" x="1576" y="0"></use></g><g transform="translate(0,-650)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-46" x="1576" y="0"></use></g></g><g transform="translate(15214,0)"><g transform="translate(0,1750)"><g fill="#00F" stroke="#00F"><g fill="#00F" stroke="#00F"><g fill="#00F" stroke="#00F"><use xlink:href="#MJMATHI-74"></use></g><g fill="#00F" stroke="#00F" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#00F" stroke="#00F" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#00F" stroke="#00F" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g><g transform="translate(0,-650)"><g fill="#F0F" stroke="#F0F"><g fill="#F0F" stroke="#F0F"><g fill="#F0F" stroke="#F0F"><use xlink:href="#MJMATHI-74"></use></g><g fill="#F0F" stroke="#F0F" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#F0F" stroke="#F0F" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#F0F" stroke="#F0F" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></g><g transform="translate(17976,0)"><g transform="translate(0,550)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-46" x="1576" y="0"></use></g><g transform="translate(0,-1850)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-46" x="1576" y="0"></use></g></g><g transform="translate(21078,0)"><g transform="translate(0,550)"><g fill="#0FF" stroke="#0FF"><g fill="#0FF" stroke="#0FF"><g fill="#0FF" stroke="#0FF"><use xlink:href="#MJMATHI-74"></use></g><g fill="#0FF" stroke="#0FF" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#0FF" stroke="#0FF" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#0FF" stroke="#0FF" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g><g transform="translate(0,-1850)"><g fill="#FFF" stroke="#FFF"><g fill="#FFF" stroke="#FFF"><g fill="#FFF" stroke="#FFF"><use xlink:href="#MJMATHI-74"></use></g><g fill="#FFF" stroke="#FFF" transform="translate(361,0)"><use xlink:href="#MJMATHI-65"></use></g><g fill="#FFF" stroke="#FFF" transform="translate(828,0)"><use xlink:href="#MJMATHI-78"></use></g><g fill="#FFF" stroke="#FFF" transform="translate(1400,0)"><use xlink:href="#MJMATHI-74"></use></g></g></g></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="23240" transform="translate(0,2735)"></line><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="23240" transform="translate(0,-2266)"></line><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="5030" transform="translate(0,-2266)"></line><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="5030" transform="translate(23210,-2266)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-248">\begin{array}{|rrrrrrrr|}\hline
    \verb+#000+ & \color{#000}{text} & & &
    \verb+#00F+ & \color{#00F}{text} & & \\
    & & \verb+#0F0+ & \color{#0F0}{text} &
    & & \verb+#0FF+ & \color{#0FF}{text} \\
    \verb+#F00+ & \color{#F00}{text} & & &
    \verb+#F0F+ & \color{#F0F}{text} & & \\
    & & \verb+#FF0+ & \color{#FF0}{text} &
    & & \verb+#FFF+ & \color{#FFF}{text} \\
\hline\end{array}</script><p></p></li>
<li><p>例子：</p></li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="co6u" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{|</span><span class="pln">rrrrrrrr</span><span class="pun">|}</span><span class="pln">\hline</span></code></li><li class="L1"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">000</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">000</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">005</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">005</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">00A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">00A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">00F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">00F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L2"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">500</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">500</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">505</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">505</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">50A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">50A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">50F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">50F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L3"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">A00</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A00</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A05</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A05</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A0A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A0A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A0F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A0F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L4"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">F00</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F00</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F05</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F05</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F0A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F0A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F0F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F0F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L5"><code><span class="pln">\hline</span></code></li><li class="L6"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">080</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">080</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">085</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">085</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">08A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">08A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">08F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">08F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L7"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">580</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">580</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">585</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">585</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">58A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">58A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">58F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">58F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L8"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">A80</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A80</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A85</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A85</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A8A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A8A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">A8F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">A8F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L9"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">F80</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F80</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F85</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F85</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F8A</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F8A</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">F8F</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">F8F</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L0"><code><span class="pln">\hline</span></code></li><li class="L1"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">0F0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0F0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">0F5</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0F5</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">0FA</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0FA</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">0FF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">0FF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L2"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="lit">5F0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">5F0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">5F5</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">5F5</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">5FA</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">5FA</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="lit">5FF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="lit">5FF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L3"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">AF0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">AF0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">AF5</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">AF5</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">AFA</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">AFA</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">AFF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">AFF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L4"><code><span class="pln">    \verb</span><span class="pun">+#</span><span class="pln">FF0</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FF0</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">FF5</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FF5</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">FFA</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FFA</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \verb</span><span class="pun">+#</span><span class="pln">FFF</span><span class="pun">+</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \color</span><span class="pun">{#</span><span class="pln">FFF</span><span class="pun">}{</span><span class="pln">text</span><span class="pun">}</span><span class="pln">  \\</span></code></li><li class="L5"><code><span class="pln">\hline\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="k7g5">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-249-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 54.788ex; height: 34.054ex; vertical-align: -16.564ex; margin: 1px 0px;" viewBox="0 -7585.328685348025 23574.96123598898 14670.65737069605"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(0,6550)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,5350)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-35" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,4150)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-41" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,2950)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-30" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,1750)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-38" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,550)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-35" x="525" y="0"></use><use xlink:href="#MJTT-38" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-650)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-41" x="525" y="0"></use><use xlink:href="#MJTT-38" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-1850)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-46" x="525" y="0"></use><use xlink:href="#MJTT-38" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-3050)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-30" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-4250)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-35" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-5450)"><use xlink:href="#MJTT-23"></use><use xlink:href="#MJTT-41" x="525" y="0"></use><use xlink:href="#MJTT-46" x="1051" y="0"></use><use xlink:href="#MJTT-30" x="1576" y="0"></use></g><g transform="translate(0,-6650)"><use 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</ul><div class="md-section-divider"></div><h3 data-anchor-id="9c0w" id="5添加删除线">(5)．添加删除线</h3><p data-anchor-id="am0j">使用删除线功能必须声明 <code>$$</code> 符号。</p><p data-anchor-id="uveb">在公式内使用 <code>\require{cancel}</code> 来允许<strong>片段删除线</strong>的显示。 <br>
声明片段删除线后，使用 <code>\cancel{字符}</code>、<code>\bcancel{字符}</code>、<code>\xcancel{字符}</code> 和 <code>\cancelto{字符}</code> 来实现各种片段删除线效果。</p><ul data-anchor-id="49qr">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="a7j9" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="pln">cancel</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">rl</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">y</span><span class="pun">+</span><span class="pln">\cancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> y</span><span class="pun">+</span><span class="pln">\cancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\cancel</span><span class="pun">{</span><span class="pln">y</span><span class="pun">+</span><span class="pln">x</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \cancel</span><span class="pun">{</span><span class="pln">y</span><span class="pun">+</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">y</span><span class="pun">+</span><span class="pln">\bcancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> y</span><span class="pun">+</span><span class="pln">\bcancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">y</span><span class="pun">+</span><span class="pln">\xcancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> y</span><span class="pun">+</span><span class="pln">\xcancel</span><span class="pun">{</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">y</span><span class="pun">+</span><span class="pln">\cancelto</span><span class="pun">{</span><span class="lit">0</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> y</span><span class="pun">+</span><span class="pln">\cancelto</span><span class="pun">{</span><span class="lit">0</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L8"><code><span class="pln">    \verb</span><span class="pun">+</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pln">\cancel9</span><span class="pun">}{</span><span class="pln">\cancel95</span><span class="pun">}</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \frac15</span><span class="pun">+&amp;</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pln">\cancel9</span><span class="pun">}{</span><span class="pln">\cancel95</span><span class="pun">}</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \frac15 \\</span></code></li><li class="L9"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L0"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="4fkl">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-250-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 57.799ex; height: 24.788ex; vertical-align: -11.931ex; margin: 1px 0px;" viewBox="0 -5595.03980356635 24868.016791544538 10690.0796071327"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(13137,4774)"><use xlink:href="#MJTT-79"></use><use xlink:href="#MJTT-2B" x="525" y="0"></use><use xlink:href="#MJTT-5C" x="1051" y="0"></use><use xlink:href="#MJTT-63" x="1576" y="0"></use><use xlink:href="#MJTT-61" x="2102" y="0"></use><use xlink:href="#MJTT-6E" x="2627" y="0"></use><use xlink:href="#MJTT-63" x="3153" y="0"></use><use xlink:href="#MJTT-65" x="3678" y="0"></use><use xlink:href="#MJTT-6C" x="4204" y="0"></use><use xlink:href="#MJTT-7B" x="4729" y="0"></use><use xlink:href="#MJTT-78" x="5255" y="0"></use><use xlink:href="#MJTT-7D" x="5780" y="0"></use></g><g transform="translate(13137,3228)"><use xlink:href="#MJTT-5C"></use><use xlink:href="#MJTT-63" x="525" y="0"></use><use xlink:href="#MJTT-61" x="1051" y="0"></use><use xlink:href="#MJTT-6E" x="1576" y="0"></use><use xlink:href="#MJTT-63" x="2102" y="0"></use><use xlink:href="#MJTT-65" x="2627" y="0"></use><use xlink:href="#MJTT-6C" x="3153" y="0"></use><use xlink:href="#MJTT-7B" x="3678" y="0"></use><use xlink:href="#MJTT-79" x="4204" y="0"></use><use xlink:href="#MJTT-2B" x="4729" y="0"></use><use xlink:href="#MJTT-78" x="5255" y="0"></use><use xlink:href="#MJTT-7D" x="5780" y="0"></use></g><g transform="translate(12612,1629)"><use xlink:href="#MJTT-79"></use><use xlink:href="#MJTT-2B" x="525" y="0"></use><use xlink:href="#MJTT-5C" x="1051" y="0"></use><use xlink:href="#MJTT-62" x="1576" y="0"></use><use xlink:href="#MJTT-63" x="2102" y="0"></use><use xlink:href="#MJTT-61" x="2627" y="0"></use><use xlink:href="#MJTT-6E" x="3153" y="0"></use><use xlink:href="#MJTT-63" x="3678" y="0"></use><use xlink:href="#MJTT-65" x="4204" y="0"></use><use xlink:href="#MJTT-6C" x="4729" y="0"></use><use xlink:href="#MJTT-7B" x="5255" y="0"></use><use xlink:href="#MJTT-78" x="5780" y="0"></use><use xlink:href="#MJTT-7D" x="6306" y="0"></use></g><g transform="translate(12612,224)"><use xlink:href="#MJTT-79"></use><use xlink:href="#MJTT-2B" x="525" y="0"></use><use xlink:href="#MJTT-5C" x="1051" y="0"></use><use xlink:href="#MJTT-78" x="1576" y="0"></use><use xlink:href="#MJTT-63" x="2102" y="0"></use><use xlink:href="#MJTT-61" x="2627" y="0"></use><use xlink:href="#MJTT-6E" x="3153" y="0"></use><use xlink:href="#MJTT-63" x="3678" y="0"></use><use xlink:href="#MJTT-65" x="4204" y="0"></use><use xlink:href="#MJTT-6C" x="4729" y="0"></use><use xlink:href="#MJTT-7B" x="5255" y="0"></use><use xlink:href="#MJTT-78" x="5780" y="0"></use><use xlink:href="#MJTT-7D" x="6306" y="0"></use></g><g transform="translate(10510,-1479)"><use xlink:href="#MJTT-79"></use><use xlink:href="#MJTT-2B" x="525" y="0"></use><use xlink:href="#MJTT-5C" x="1051" y="0"></use><use xlink:href="#MJTT-63" x="1576" y="0"></use><use xlink:href="#MJTT-61" x="2102" y="0"></use><use xlink:href="#MJTT-6E" x="2627" y="0"></use><use xlink:href="#MJTT-63" x="3153" y="0"></use><use xlink:href="#MJTT-65" x="3678" y="0"></use><use xlink:href="#MJTT-6C" x="4204" y="0"></use><use xlink:href="#MJTT-74" x="4729" y="0"></use><use xlink:href="#MJTT-6F" x="5255" y="0"></use><use xlink:href="#MJTT-7B" x="5780" y="0"></use><use xlink:href="#MJTT-30" x="6306" y="0"></use><use xlink:href="#MJTT-7D" x="6831" y="0"></use><use xlink:href="#MJTT-7B" x="7357" y="0"></use><use xlink:href="#MJTT-78" x="7882" y="0"></use><use xlink:href="#MJTT-7D" x="8408" y="0"></use></g><g transform="translate(0,-3871)"><use xlink:href="#MJTT-5C"></use><use xlink:href="#MJTT-66" x="525" y="0"></use><use xlink:href="#MJTT-72" x="1051" y="0"></use><use xlink:href="#MJTT-61" x="1576" y="0"></use><use xlink:href="#MJTT-63" x="2102" y="0"></use><use xlink:href="#MJTT-7B" x="2627" y="0"></use><use xlink:href="#MJTT-31" x="3153" y="0"></use><use xlink:href="#MJTT-5C" x="3678" y="0"></use><use xlink:href="#MJTT-63" x="4204" y="0"></use><use xlink:href="#MJTT-61" x="4729" y="0"></use><use xlink:href="#MJTT-6E" x="5255" y="0"></use><use xlink:href="#MJTT-63" x="5780" y="0"></use><use xlink:href="#MJTT-65" x="6306" y="0"></use><use xlink:href="#MJTT-6C" x="6831" y="0"></use><use xlink:href="#MJTT-39" x="7357" y="0"></use><use xlink:href="#MJTT-7D" x="7882" y="0"></use><use xlink:href="#MJTT-7B" x="8408" y="0"></use><use xlink:href="#MJTT-5C" x="8933" y="0"></use><use xlink:href="#MJTT-63" x="9459" y="0"></use><use xlink:href="#MJTT-61" x="9984" y="0"></use><use xlink:href="#MJTT-6E" x="10510" y="0"></use><use xlink:href="#MJTT-63" x="11035" y="0"></use><use xlink:href="#MJTT-65" x="11561" y="0"></use><use xlink:href="#MJTT-6C" x="12086" y="0"></use><use xlink:href="#MJTT-39" x="12612" y="0"></use><use xlink:href="#MJTT-35" x="13137" y="0"></use><use xlink:href="#MJTT-7D" x="13663" y="0"></use><use xlink:href="#MJTT-20" x="14188" y="0"></use><use xlink:href="#MJTT-3D" x="14714" y="0"></use><use xlink:href="#MJTT-20" x="15239" y="0"></use><use xlink:href="#MJTT-5C" x="15765" y="0"></use><use xlink:href="#MJTT-66" x="16290" y="0"></use><use xlink:href="#MJTT-72" x="16816" y="0"></use><use xlink:href="#MJTT-61" x="17341" y="0"></use><use xlink:href="#MJTT-63" x="17867" y="0"></use><use xlink:href="#MJTT-31" x="18392" y="0"></use><use xlink:href="#MJTT-35" x="18918" y="0"></use></g></g><g transform="translate(20428,0)"><g transform="translate(0,4774)"><use xlink:href="#MJMATHI-79"></use><use xlink:href="#MJMAIN-2B" x="719" y="0"></use><g transform="translate(1942,0)"><use xlink:href="#MJMATHI-78" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-250" x2="1085" y2="680"></line></g></g><g transform="translate(0,3228)"><g transform="translate(275,0)"><use xlink:href="#MJMATHI-79"></use><use xlink:href="#MJMAIN-2B" x="719" y="0"></use><use xlink:href="#MJMATHI-78" x="1720" y="0"></use></g><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-444" x2="2805" y2="821"></line></g><g transform="translate(0,1629)"><use xlink:href="#MJMATHI-79"></use><use xlink:href="#MJMAIN-2B" x="719" y="0"></use><g transform="translate(1942,0)"><use xlink:href="#MJMATHI-78" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="680" x2="1085" y2="-250"></line></g></g><g transform="translate(0,224)"><use xlink:href="#MJMATHI-79"></use><use xlink:href="#MJMAIN-2B" x="719" y="0"></use><g transform="translate(1942,0)"><use xlink:href="#MJMATHI-78" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-250" x2="1085" y2="680"></line><line fill="none" stroke="black" stroke-width="75" x1="37" y1="680" x2="1085" y2="-250"></line></g></g><g transform="translate(0,-1479)"><use xlink:href="#MJMATHI-79"></use><use xlink:href="#MJMAIN-2B" x="719" y="0"></use><g transform="translate(1720,0)"><use xlink:href="#MJMATHI-78" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-250" x2="899" y2="514"></line><polygon fill="black" points="504,332 0,148 244,99 266,-149 504,332" transform="translate(617,385)"></polygon><g transform="translate(1122,444)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="0" y="141"></use></g></g></g><g transform="translate(0,-3871)"><g transform="translate(120,0)"><rect stroke="none" width="1671" height="60" x="0" y="220"></rect><g transform="translate(60,762)"><use xlink:href="#MJMAIN-31"></use><g transform="translate(500,0)"><use xlink:href="#MJMAIN-39" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-261" x2="1013" y2="904"></line></g></g><g transform="translate(60,-907)"><use xlink:href="#MJMAIN-39" x="275" y="0"></use><line fill="none" stroke="black" stroke-width="75" x1="37" y1="-261" x2="1013" y2="904"></line><use xlink:href="#MJMAIN-35" x="1050" y="0"></use></g></g><use xlink:href="#MJMAIN-3D" x="2188" y="0"></use><g transform="translate(3365,0)"><rect stroke="none" width="620" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="60" y="676"></use><use xlink:href="#MJMAIN-35" x="60" y="-686"></use></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-250">
\require{cancel}
\begin{array}{rl}
    \verb|y+\cancel{x}| & y+\cancel{x} \\
    \verb|\cancel{y+x}| & \cancel{y+x} \\
    \verb|y+\bcancel{x}| & y+\bcancel{x} \\
    \verb|y+\xcancel{x}| & y+\xcancel{x} \\
    \verb|y+\cancelto{0}{x}| & y+\cancelto{0}{x} \\
    \verb+\frac{1\cancel9}{\cancel95} = \frac15+& \frac{1\cancel9}{\cancel95} = \frac15 \\
\end{array}
</script></li>
</ul><p data-anchor-id="1p58">使用 <code>\require{enclose}</code> 来允许<strong>整段删除线</strong>的显示。 <br>
声明整段删除线后，使用 <code>\enclose{删除线效果}{字符}</code> 来实现各种整段删除线效果。 <br>
其中，删除线效果有 <code>horizontalstrike</code>、<code>verticalstrike</code>、<code>updiagonalstrike</code> 和 <code>downdiagonalstrike</code>，可叠加使用。</p><ul data-anchor-id="buwm">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xgbs" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="pln">enclose</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">rl</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">horizontalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \enclose</span><span class="pun">{</span><span class="pln">horizontalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">verticalstrike</span><span class="pun">}{</span><span class="pln">\frac xy</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \enclose</span><span class="pun">{</span><span class="pln">verticalstrike</span><span class="pun">}{</span><span class="pln">\frac xy</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">updiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \enclose</span><span class="pun">{</span><span class="pln">updiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">downdiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \enclose</span><span class="pun">{</span><span class="pln">downdiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">    \verb</span><span class="pun">|</span><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">horizontalstrike</span><span class="pun">,</span><span class="pln">updiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}|</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \enclose</span><span class="pun">{</span><span class="pln">horizontalstrike</span><span class="pun">,</span><span class="pln">updiagonalstrike</span><span class="pun">}{</span><span class="pln">x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L8"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L9"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="ux2x">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-251-Frame"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 68.224ex; height: 21.429ex; vertical-align: -10.077ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 68.224ex; height: 21.429ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -4875.281185348024 29385.90568043343 9250.562370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(8933,4055)"><use xlink:href="#MJTT-5C"></use><use xlink:href="#MJTT-65" x="525" y="0"></use><use xlink:href="#MJTT-6E" x="1051" y="0"></use><use xlink:href="#MJTT-63" x="1576" y="0"></use><use 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\require{enclose}
\begin{array}{rl}
    \verb|\enclose{horizontalstrike}{x+y}| & \enclose{horizontalstrike}{x+y} \\
    \verb|\enclose{verticalstrike}{\frac xy}| & \enclose{verticalstrike}{\frac xy} \\
    \verb|\enclose{updiagonalstrike}{x+y}| & \enclose{updiagonalstrike}{x+y} \\
    \verb|\enclose{downdiagonalstrike}{x+y}| & \enclose{downdiagonalstrike}{x+y} \\
    \verb|\enclose{horizontalstrike,updiagonalstrike}{x+y}| & \enclose{horizontalstrike,updiagonalstrike}{x+y} \\
\end{array}
</script></li>
</ul><p data-anchor-id="70fu">此外， <code>\enclose</code> 命令还可以产生包围的边框和圆等，参见 <a href="https://developer.mozilla.org/en-US/docs/Web/MathML/Element/menclose" target="_blank">MathML Menclose Documentation</a> 以查看更多效果。</p><ul data-anchor-id="tl5w">
<li>例子：</li>
</ul><table data-anchor-id="22a0" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">分别使用 <code>circle</code> 和 <code>roundedbox</code> 包围的公式</th>
</tr>
</thead>
</table><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="3376" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="pln">enclose</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    \enclose</span><span class="pun">{</span><span class="pln">circle</span><span class="pun">}{</span><span class="pln">f</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">2</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">3</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">)</span><span class="pln"> \,\cdots\, f</span><span class="pun">^</span><span class="pln">n</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">)}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    \enclose</span><span class="pun">{</span><span class="pln">roundedbox</span><span class="pun">}{</span><span class="pln">f</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">2</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">3</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">)</span><span class="pln"> \,\cdots\, f</span><span class="pun">^</span><span class="pln">n</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">)}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><table data-anchor-id="xqet" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">使用 <code>box</code> 框住所有公式</th>
</tr>
</thead>
</table><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xnx3" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="pln">enclose</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\enclose</span><span class="pun">{</span><span class="pln">box</span><span class="pun">}{</span></code></li><li class="L3"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L4"><code><span class="pln">        f</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">2</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">3</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">)</span><span class="pln"> \,\cdots\, f</span><span class="pun">^</span><span class="pln">n</span><span class="pun">(</span><span class="pln">\top</span><span class="pun">)</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">        f</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">2</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">),</span><span class="pln">\, f</span><span class="pun">^</span><span class="lit">3</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">)</span><span class="pln"> \,\cdots\, f</span><span class="pun">^</span><span class="pln">n</span><span class="pun">(</span><span class="pln">\bot</span><span class="pun">)</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L7"><code><span class="pun">}</span></code></li><li class="L8"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="nfrf">
<li>显示：</li>
</ul><table data-anchor-id="up6h" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">分别使用 <code>circle</code> 和 <code>roundedbox</code> 包围的公式</th>
 <th style="text-align:center;">使用 <code>box</code> 框住所有公式</th>
</tr>
</thead>
<tbody><tr>
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</tr>
</tbody></table><p data-anchor-id="wcx9">此例语法可参见“<a href="#五数组与表格使用参考">如何输入一个数组或表格</a>”。</p><div class="md-section-divider"></div><h1 data-anchor-id="ggfn" id="二矩阵使用参考">二、矩阵使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="7z1b" id="1如何输入无框矩阵">1．如何输入无框矩阵</h2><p data-anchor-id="enub">在开头使用 <code>\begin{matrix}`，在结尾使用 `\end{matrix}</code>，在中间插入矩阵元素，每个元素之间插入 <code>&amp;</code> ，并在每行结尾处使用 <code>\\</code> 。 <br>
使用矩阵时必须声明 <code>$</code> 或 <code>$$</code> 符号。</p><ul data-anchor-id="cjh8">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="wr3j" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">matrix</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> x </span><span class="pun">&amp;</span><span class="pln"> x</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L3"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> y </span><span class="pun">&amp;</span><span class="pln"> y</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> z </span><span class="pun">&amp;</span><span class="pln"> z</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">matrix</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="ni8n">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-254-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 10.309ex; height: 9.035ex; vertical-align: -4.054ex; margin: 1px 0px;" viewBox="0 -2205.8500199251653 4418.368179972848 3911.7000398503305"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="1301"></use><use xlink:href="#MJMAIN-31" x="0" y="4"></use><use xlink:href="#MJMAIN-31" x="0" y="-1486"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMATHI-78" x="0" y="1301"></use><use xlink:href="#MJMATHI-79" x="37" y="4"></use><use xlink:href="#MJMATHI-7A" x="52" y="-1486"></use></g><g transform="translate(3057,0)"><g transform="translate(0,1301)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><g transform="translate(36,4)"><use xlink:href="#MJMATHI-79"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="706" y="583"></use></g><g transform="translate(51,-1486)"><use xlink:href="#MJMATHI-7A"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="663" y="583"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-254">
\begin{matrix}
    1 & x & x^2 \\
    1 & y & y^2 \\
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\end{matrix}
</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="isn7" id="2如何输入边框矩阵">2．如何输入边框矩阵</h2><p data-anchor-id="xbhe">在开头将 <code>matrix</code> 替换为 <code>pmatrix</code> <code>bmatrix</code> <code>Bmatrix</code> <code>vmatrix</code> <code>Vmatrix</code> 。</p><ul data-anchor-id="k3g0">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="pbwm" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="pln">matrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="pln">matrix</span><span class="pun">}</span><span class="pln"> $</span></code></li><li class="L1"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="pln">pmatrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="pln">pmatrix</span><span class="pun">}</span><span class="pln"> $</span></code></li><li class="L2"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="pln">bmatrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="pln">bmatrix</span><span class="pun">}</span><span class="pln"> $</span></code></li><li class="L3"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="typ">Bmatrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="typ">Bmatrix</span><span class="pun">}</span><span class="pln"> $</span></code></li><li class="L4"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="pln">vmatrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="pln">vmatrix</span><span class="pun">}</span><span class="pln"> $</span></code></li><li class="L5"><code><span class="pln">$ \begin</span><span class="pun">{</span><span class="typ">Vmatrix</span><span class="pun">}</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\ </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">4</span><span class="pln"> \\ \end</span><span class="pun">{</span><span class="typ">Vmatrix</span><span class="pun">}</span><span class="pln"> $</span></code></li></ol></pre><ul data-anchor-id="miyw">
<li>显示：</li>
</ul><table data-anchor-id="cns5" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">matrix</th>
 <th style="text-align:center;">pmatrix</th>
 <th style="text-align:center;">bmatrix</th>
 <th style="text-align:center;">Bmatrix</th>
 <th style="text-align:center;">vmatrix</th>
 <th style="text-align:center;">Vmatrix</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-255-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 5.444ex; height: 5.212ex; vertical-align: -2.085ex; margin: 1px 0px;" viewBox="0 -1370.0516853480244 2319.9612359889816 2240.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g></g></svg></span><script type="math/tex" id="MathJax-Element-255"> \begin{matrix} 1 & 2 \\ 3 & 4 \\ \end{matrix} </script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-256-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.803ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 3792.9612359889816 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ3-28"></use><g transform="translate(903,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g><use xlink:href="#MJSZ3-29" x="3056" y="-1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-256"> \begin{pmatrix} 1 & 2 \\ 3 & 4 \\ \end{pmatrix} </script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-257-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.876ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 3376.9612359889816 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ3-5B"></use><g transform="translate(695,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g><use xlink:href="#MJSZ3-5D" x="2848" y="-1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-257"> \begin{bmatrix} 1 & 2 \\ 3 & 4 \\ \end{bmatrix} </script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-258-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 8.919ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 3820.9612359889816 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ3-7B"></use><g transform="translate(917,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g><use xlink:href="#MJSZ3-7D" x="3070" y="-1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-258"> \begin{Bmatrix} 1 & 2 \\ 3 & 4 \\ \end{Bmatrix} </script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-259-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 6.718ex; height: 5.212ex; vertical-align: -2.085ex; margin: 1px 0px;" viewBox="0 -1370.0516853480244 2876.9612359889816 2240.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(0,1350)"><use xlink:href="#MJMAIN-2223" x="0" y="-751"></use><g transform="translate(0,-1174.5744255744255) scale(1,0.2977022977022977)"><use xlink:href="#MJMAIN-2223"></use></g><use xlink:href="#MJMAIN-2223" x="0" y="-1950"></use></g><g transform="translate(445,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g><g transform="translate(2598,1350)"><use xlink:href="#MJMAIN-2223" x="0" y="-751"></use><g transform="translate(0,-1174.5744255744255) scale(1,0.2977022977022977)"><use xlink:href="#MJMAIN-2223"></use></g><use xlink:href="#MJMAIN-2223" x="0" y="-1950"></use></g></g></svg></span><script type="math/tex" id="MathJax-Element-259"> \begin{vmatrix} 1 & 2 \\ 3 & 4 \\ \end{vmatrix} </script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-260-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.761ex; height: 5.212ex; vertical-align: -2.085ex; margin: 1px 0px;" viewBox="0 -1370.0516853480244 3320.9612359889816 2240.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-2225"></use><g transform="translate(667,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-33" x="0" y="-650"></use></g><g transform="translate(1485,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g></g><use xlink:href="#MJMAIN-2225" x="2820" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-260"> \begin{Vmatrix} 1 & 2 \\ 3 & 4 \\ \end{Vmatrix} </script></td>
</tr>
</tbody></table><div class="md-section-divider"></div><h2 data-anchor-id="aoe0" id="3如何输入带省略符号的矩阵">3．如何输入带省略符号的矩阵</h2><p data-anchor-id="kri2">使用 <code>\cdots</code> <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-261-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 2.78ex; height: 0.232ex; vertical-align: 0.463ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 2.78ex; height: 0.811ex; position: absolute; bottom: -0.463ex; left: 0px;" viewBox="0 -331.0516853480245 1172.5 351.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22EF"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-261">\cdots</script> , <code>\ddots</code> <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-262-Frame" role="textbox" aria-readonly="true"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 3.012ex; height: 3.359ex; vertical-align: 0.232ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 3.591ex; position: absolute; bottom: -0.232ex; left: 0px;" viewBox="0 -1541.0516853480244 1282.5 1561.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22F1"></use></g></svg></span></span></span><script type="math/tex" id="MathJax-Element-262">\ddots</script> , <code>\vdots</code> <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-263-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 0.695ex; height: 3.243ex; vertical-align: -0.232ex; margin: 1px 0px;" viewBox="0 -1321.0516853480244 278.5 1372.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-22EE"></use></g></svg></span><script type="math/tex" id="MathJax-Element-263">\vdots</script> 来输入省略符号。</p><ul data-anchor-id="evu9">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="vvo5" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">pmatrix</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> a_1 </span><span class="pun">&amp;</span><span class="pln"> a_1</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \cdots </span><span class="pun">&amp;</span><span class="pln"> a_1</span><span class="pun">^</span><span class="pln">n \\</span></code></li><li class="L3"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> a_2 </span><span class="pun">&amp;</span><span class="pln"> a_2</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \cdots </span><span class="pun">&amp;</span><span class="pln"> a_2</span><span class="pun">^</span><span class="pln">n \\</span></code></li><li class="L4"><code><span class="pln">    \vdots </span><span class="pun">&amp;</span><span class="pln"> \vdots </span><span class="pun">&amp;</span><span class="pln"> \vdots </span><span class="pun">&amp;</span><span class="pln"> \ddots </span><span class="pun">&amp;</span><span class="pln"> \vdots \\</span></code></li><li class="L5"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> a_m </span><span class="pun">&amp;</span><span class="pln"> a_m</span><span class="pun">^</span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \cdots </span><span class="pun">&amp;</span><span class="pln"> a_m</span><span class="pun">^</span><span class="pln">n \\</span></code></li><li class="L6"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">pmatrix</span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="8o6t">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-264-Frame"><span style="display: inline-block; white-space: nowrap; padding: 1px 0px;"><span style="display: inline-block; position: relative; width: 26.988ex; height: 14.015ex; vertical-align: -6.371ex;"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 26.988ex; height: 14.015ex; position: absolute; bottom: 0ex; left: 0px;" viewBox="0 -3279.1416099295598 11605.041157806128 6058.2832198591195"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(0,3259)"><use xlink:href="#MJSZ4-239B" x="0" y="-1156"></use><g transform="translate(0,-4209.1186000620155) scale(1,4.005104091754526)"><use xlink:href="#MJSZ4-239C"></use></g><use xlink:href="#MJSZ4-239D" x="0" y="-5374"></use></g><g transform="translate(1042,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMAIN-31" x="0" y="2442"></use><use xlink:href="#MJMAIN-31" x="0" y="917"></use><use xlink:href="#MJMAIN-22EE" x="111" y="-1312"></use><use xlink:href="#MJMAIN-31" x="0" y="-2560"></use></g><g transform="translate(1485,0)"><g transform="translate(133,2442)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use></g><g transform="translate(133,917)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-213"></use></g><use xlink:href="#MJMAIN-22EE" x="486" y="-1312"></use><g transform="translate(0,-2560)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="748" y="-213"></use></g></g><g transform="translate(3736,0)"><g transform="translate(133,2442)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-435"></use></g><g transform="translate(133,917)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-435"></use></g><use xlink:href="#MJMAIN-22EE" x="486" y="-1312"></use><g transform="translate(0,-2560)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="488"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="748" y="-212"></use></g></g><g transform="translate(5986,0)"><use xlink:href="#MJMAIN-22EF" x="55" y="2442"></use><use xlink:href="#MJMAIN-22EF" x="55" y="917"></use><use xlink:href="#MJMAIN-22F1" x="0" y="-1312"></use><use xlink:href="#MJMAIN-22EF" x="55" y="-2560"></use></g><g transform="translate(8269,0)"><g transform="translate(98,2442)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="748" y="499"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-435"></use></g><g transform="translate(98,917)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="748" y="499"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-435"></use></g><use xlink:href="#MJMAIN-22EE" x="486" y="-1312"></use><g transform="translate(0,-2560)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="748" y="499"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6D" x="748" y="-212"></use></g></g></g><g transform="translate(10729,3259)"><use xlink:href="#MJSZ4-239E" x="0" y="-1155"></use><g transform="translate(0,-4209.099338424777) scale(1,4.006709228191124)"><use xlink:href="#MJSZ4-239F"></use></g><use xlink:href="#MJSZ4-23A0" x="0" y="-5374"></use></g></g></svg></span></span></span></div><script type="math/tex; mode=display" id="MathJax-Element-264">
\begin{pmatrix}
    1 & a_1 & a_1^2 & \cdots & a_1^n \\
    1 & a_2 & a_2^2 & \cdots & a_2^n \\
    \vdots & \vdots & \vdots & \ddots & \vdots \\
    1 & a_m & a_m^2 & \cdots & a_m^n \\
\end{pmatrix}
</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="2fx4" id="4如何输入带分割符号的矩阵">4．如何输入带分割符号的矩阵</h2><p data-anchor-id="3cyz">详见"<a href="#五数组与表格使用参考">数组使用参考</a>"。</p><ul data-anchor-id="whqn">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="wbbo" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\left</span><span class="pun">[</span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">|</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">        </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">        </span><span class="lit">4</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">5</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">6</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">\right</span><span class="pun">]</span></code></li><li class="L7"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="kd71">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-265-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 13.436ex; height: 7.066ex; vertical-align: -3.012ex; margin: 1px 0px;" viewBox="0 -1770.5516853480244 5787.461235988982 3041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ4-5B"></use><g transform="translate(750,0)"><g transform="translate(384,0)"><use xlink:href="#MJMAIN-31" x="0" y="550"></use><use xlink:href="#MJMAIN-34" x="0" y="-650"></use></g><g transform="translate(1885,0)"><use xlink:href="#MJMAIN-32" x="0" y="550"></use><use xlink:href="#MJMAIN-35" x="0" y="-650"></use></g><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="2630" transform="translate(2885,-1066)"></line><g transform="translate(3385,0)"><use xlink:href="#MJMAIN-33" x="0" y="550"></use><use xlink:href="#MJMAIN-36" x="0" y="-650"></use></g></g><use xlink:href="#MJSZ4-5D" x="5203" y="-1"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-265">
\left[
    \begin{array}{cc|c}
        1 & 2 & 3 \\
        4 & 5 & 6 \\
    \end{array}
\right]
</script></li>
</ul><p data-anchor-id="mial">其中 <code>cc|c</code> 代表在一个三列矩阵中的第二和第三列之间插入分割线。</p><div class="md-section-divider"></div><h2 data-anchor-id="qr7f" id="5如何输入行中矩阵">5．如何输入行中矩阵</h2><p data-anchor-id="4aa4">若想在一行内显示矩阵， <br>
使用<code>\bigl(\begin{smallmatrix} ... \end{smallmatrix}\bigr)</code>。</p><ul data-anchor-id="ezf7">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="1xc7" style=""><ol class="linenums"><li class="L0"><code><span class="pun">这是一个行中矩阵的示例</span><span class="pln"> $\bigl</span><span class="pun">(</span><span class="pln">\begin</span><span class="pun">{</span><span class="pln">smallmatrix</span><span class="pun">}</span><span class="pln"> a </span><span class="pun">&amp;</span><span class="pln"> b \\ c </span><span class="pun">&amp;</span><span class="pln"> d \end</span><span class="pun">{</span><span class="pln">smallmatrix</span><span class="pun">}</span><span class="pln">\bigr</span><span class="pun">)</span><span class="pln">$ </span><span class="pun">。</span></code></li></ol></pre><ul data-anchor-id="b3dq">
<li>显示：这是一个行中矩阵的示例 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-266-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 5.328ex; height: 3.359ex; vertical-align: -1.39ex; margin: 1px 0px;" viewBox="0 -900.3440183873798 2313.5446765784163 1447.1346461814858"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJSZ1-28"></use><g transform="translate(625,0)"><g transform="translate(-16,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-61" x="0" y="444"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-63" x="47" y="-545"></use></g><g transform="translate(692,0)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-62" x="47" y="444"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-64" x="0" y="-545"></use></g></g><use xlink:href="#MJSZ1-29" x="1855" y="-1"></use></g></svg></span><script type="math/tex" id="MathJax-Element-266">\bigl(\begin{smallmatrix} a & b \\ c & d \end{smallmatrix}\bigr)</script> 。</li>
</ul><div class="md-section-divider"></div><h1 data-anchor-id="aiuv" id="三方程式序列使用参考">三、方程式序列使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="cao7" id="1如何输入一个方程式序列">1．如何输入一个方程式序列</h2><p data-anchor-id="0j7i">人们经常想要一列整齐且居中的方程式序列。使用 <code>\begin{align}…\end{align}</code> 来创造一列方程式，其中在每行结尾处使用 <code>\\</code> 。使用方程式序列无需声明公式符号 <code>$</code> 或 <code>$$</code> 。</p><p data-anchor-id="546y"><strong>请注意 <code>{align}</code> 语句是自动编号的，使用 <code>{align*}</code> 声明不自动编号。</strong></p><ul data-anchor-id="z5ah">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="im2g" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">align</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \sqrt</span><span class="pun">{</span><span class="lit">37</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \sqrt</span><span class="pun">{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="lit">1</span><span class="pun">}{</span><span class="lit">12</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">              </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \sqrt</span><span class="pun">{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="lit">12</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln">\cdot\frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="lit">1</span><span class="pun">}{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}}</span><span class="pln"> \\ </span></code></li><li class="L3"><code><span class="pln">              </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \sqrt</span><span class="pun">{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="lit">12</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}}</span><span class="pln">\sqrt</span><span class="pun">{</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">-</span><span class="lit">1</span><span class="pun">}{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">              </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">}{</span><span class="lit">12</span><span class="pun">}</span><span class="pln">\sqrt</span><span class="pun">{</span><span class="lit">1</span><span class="pun">-</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="lit">73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}}</span><span class="pln"> \\ </span></code></li><li class="L5"><code><span class="pln">              </span><span class="pun">&amp;</span><span class="pln"> \approx \frac</span><span class="pun">{</span><span class="lit">73</span><span class="pun">}{</span><span class="lit">12</span><span class="pun">}</span><span class="pln">\left</span><span class="pun">(</span><span class="lit">1</span><span class="pun">-</span><span class="pln">\frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">}{</span><span class="lit">2</span><span class="pln">\cdot73</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}</span><span class="pln">\right</span><span class="pun">)</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">align</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="qxz1">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-267-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 93.591ex; height: 36.95ex; vertical-align: -17.954ex; margin: 1px 0px;" viewBox="0 -8202.551685348024 40295.86471042471 15905.10337069605"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(14856,0)"><g transform="translate(-16,0)"><g transform="translate(0,6284)"><use xlink:href="#MJMAIN-221A" x="0" y="3"></use><rect stroke="none" width="1001" height="60" x="833" y="744"></rect><g transform="translate(833,0)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMAIN-37" x="500" y="0"></use></g></g></g><g transform="translate(2097,0)"><g transform="translate(0,6284)"><use xlink:href="#MJMAIN-3D"></use><g 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x="1677" y="0"></use><use xlink:href="#MJMAIN-31" x="2677" y="0"></use></g><g transform="translate(921,-841)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use></g></g></g></g></g><g transform="translate(0,-440)"><use xlink:href="#MJMAIN-3D"></use><g transform="translate(1056,0)"><use xlink:href="#MJSZ4-221A" x="0" y="86"></use><rect stroke="none" width="1814" height="60" x="1000" y="1777"></rect><g transform="translate(1000,0)"><g transform="translate(120,0)"><rect stroke="none" width="1574" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use></g><g transform="translate(60,-831)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-32" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="557"></use></g></g></g></g><g transform="translate(3871,0)"><use xlink:href="#MJSZ4-221A" x="0" y="70"></use><rect stroke="none" width="3538" height="60" x="1000" y="1761"></rect><g transform="translate(1000,0)"><g transform="translate(120,0)"><rect stroke="none" width="3298" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use><use xlink:href="#MJMAIN-2212" x="1677" y="0"></use><use xlink:href="#MJMAIN-31" x="2677" y="0"></use></g><g transform="translate(921,-841)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use></g></g></g></g></g><g transform="translate(0,-3697)"><use xlink:href="#MJMAIN-3D"></use><g transform="translate(1176,0)"><rect stroke="none" width="1121" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-32" x="500" y="0"></use></g></g><g transform="translate(2583,0)"><use xlink:href="#MJSZ4-221A" x="0" y="-34"></use><rect stroke="none" width="3538" height="60" x="1000" y="1657"></rect><g transform="translate(1000,0)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-2212" x="722" y="0"></use><g transform="translate(1843,0)"><rect stroke="none" width="1574" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="537" y="676"></use><g transform="translate(60,-841)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use></g></g></g></g></g><g transform="translate(0,-6732)"><use xlink:href="#MJMAIN-2248"></use><g transform="translate(1176,0)"><rect stroke="none" width="1121" height="60" x="0" y="220"></rect><g transform="translate(60,676)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-32" x="500" y="0"></use></g></g><g transform="translate(2583,0)"><use xlink:href="#MJSZ3-28"></use><use xlink:href="#MJMAIN-31" x="736" y="0"></use><use xlink:href="#MJMAIN-2212" x="1459" y="0"></use><g transform="translate(2579,0)"><rect stroke="none" width="2798" height="60" x="0" y="220"></rect><use xlink:href="#MJMAIN-31" x="1148" y="676"></use><g transform="translate(60,-841)"><use xlink:href="#MJMAIN-32"></use><use xlink:href="#MJMAIN-22C5" x="722" y="0"></use><g transform="translate(1223,0)"><use xlink:href="#MJMAIN-37"></use><use xlink:href="#MJMAIN-33" x="500" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1415" y="571"></use></g></g></g><use xlink:href="#MJSZ3-29" x="5498" y="-1"></use></g></g></g></g><g transform="translate(38216,0)"><g transform="translate(0,6284)"><g id="mjx-eqn-2"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-32" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g><g transform="translate(0,2938)"><g id="mjx-eqn-3"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-33" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g><g transform="translate(0,-440)"><g id="mjx-eqn-4"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-34" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g><g transform="translate(0,-3697)"><g id="mjx-eqn-5"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-35" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g><g transform="translate(0,-6732)"><g id="mjx-eqn-6"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-36" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-267">\begin{align}
    \sqrt{37} & = \sqrt{\frac{73^2-1}{12^2}} \\
              & = \sqrt{\frac{73^2}{12^2}\cdot\frac{73^2-1}{73^2}} \\ 
              & = \sqrt{\frac{73^2}{12^2}}\sqrt{\frac{73^2-1}{73^2}} \\
              & = \frac{73}{12}\sqrt{1-\frac{1}{73^2}} \\ 
              & \approx \frac{73}{12}\left(1-\frac{1}{2\cdot73^2}\right) \\
\end{align}</script></li>
</ul><p data-anchor-id="nyv5">本例中每行公式的编号续自“<a href="#1如何插入公式">如何插入公式</a>”中的自动编号公式<span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-268-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 3.012ex; height: 2.432ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -771.0516853480245 1279.5 1042.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><a class="mjx-svg-href" xlink:href="#mjx-eqn-eqsample"><rect width="1279.5" height="1002" y="-251" fill="none" stroke="none" pointer-events="all"></rect><g class="MathJax_ref"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></a></g></svg></span><script type="math/tex" id="MathJax-Element-268">\eqref{eq:sample}</script> 。</p><div class="md-section-divider"></div><h2 data-anchor-id="v60k" id="2在一个方程式序列的每一行中注明原因">2．在一个方程式序列的每一行中注明原因</h2><p data-anchor-id="289u">在 <code>{align}</code> 中后添加 <code>&amp;</code> 符号来自动对齐后面的内容，可灵活组合 <code>\text</code> 和 <code>\tag</code> 语句。<code>\tag</code> 语句编号优先级高于自动编号。</p><ul data-anchor-id="voes">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="kd6g" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">align</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    v </span><span class="pun">+</span><span class="pln"> w </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="lit">0</span><span class="pln">  </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="typ">Given</span><span class="pun">}</span><span class="pln"> \tag </span><span class="lit">1</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">       </span><span class="pun">-</span><span class="pln">w </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="pun">-</span><span class="pln">w </span><span class="pun">+</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="pln">additive identity</span><span class="pun">}</span><span class="pln"> \tag </span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L3"><code><span class="pln">   </span><span class="pun">-</span><span class="pln">w </span><span class="pun">+</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="pun">-</span><span class="pln">w </span><span class="pun">+</span><span class="pln"> </span><span class="pun">(</span><span class="pln">v </span><span class="pun">+</span><span class="pln"> w</span><span class="pun">)</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="pln">equations $</span><span class="pun">(</span><span class="lit">1</span><span class="pun">)</span><span class="pln">$ </span><span class="kwd">and</span><span class="pln"> $</span><span class="pun">(</span><span class="lit">2</span><span class="pun">)</span><span class="pln">$</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">align</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="5i0d">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-269-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 93.591ex; height: 8.571ex; vertical-align: -3.822ex; margin: 1px 0px;" viewBox="0 -2097.5516853480244 40295.86471042471 3695.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(9548,0)"><g transform="translate(-16,0)"><g transform="translate(793,1277)"><use xlink:href="#MJMATHI-76"></use><use xlink:href="#MJMAIN-2B" x="707" y="0"></use><use xlink:href="#MJMATHI-77" x="1708" y="0"></use></g><g transform="translate(1723,-25)"><use xlink:href="#MJMAIN-2212"></use><use xlink:href="#MJMATHI-77" x="778" y="0"></use></g><g transform="translate(0,-1327)"><use xlink:href="#MJMAIN-2212"></use><use xlink:href="#MJMATHI-77" x="778" y="0"></use><use xlink:href="#MJMAIN-2B" x="1717" y="0"></use><use xlink:href="#MJMAIN-30" x="2717" y="0"></use></g></g><g transform="translate(3481,0)"><g transform="translate(0,1277)"><use xlink:href="#MJMAIN-3D"></use><use xlink:href="#MJMAIN-30" x="1056" y="0"></use></g><g transform="translate(0,-25)"><use xlink:href="#MJMAIN-3D"></use><use xlink:href="#MJMAIN-2212" x="1056" y="0"></use><use xlink:href="#MJMATHI-77" x="1834" y="0"></use><use xlink:href="#MJMAIN-2B" x="2773" y="0"></use><use xlink:href="#MJMAIN-30" x="3774" y="0"></use></g><g transform="translate(0,-1327)"><use xlink:href="#MJMAIN-3D"></use><use xlink:href="#MJMAIN-2212" x="1056" y="0"></use><use xlink:href="#MJMATHI-77" x="1834" y="0"></use><use xlink:href="#MJMAIN-2B" x="2773" y="0"></use><use xlink:href="#MJMAIN-28" x="3774" y="0"></use><use xlink:href="#MJMATHI-76" x="4163" y="0"></use><use xlink:href="#MJMAIN-2B" x="4871" y="0"></use><use xlink:href="#MJMATHI-77" x="5872" y="0"></use><use xlink:href="#MJMAIN-29" x="6588" y="0"></use></g></g><g transform="translate(12459,0)"><g transform="translate(6480,1277)"><use xlink:href="#MJMAIN-47"></use><use xlink:href="#MJMAIN-69" x="785" y="0"></use><use xlink:href="#MJMAIN-76" x="1064" y="0"></use><use xlink:href="#MJMAIN-65" x="1592" y="0"></use><use xlink:href="#MJMAIN-6E" x="2037" y="0"></use></g><g transform="translate(1868,-25)"><use xlink:href="#MJMAIN-61"></use><use xlink:href="#MJMAIN-64" x="500" y="0"></use><use xlink:href="#MJMAIN-64" x="1057" y="0"></use><use xlink:href="#MJMAIN-69" x="1613" y="0"></use><use xlink:href="#MJMAIN-74" x="1892" y="0"></use><use xlink:href="#MJMAIN-69" x="2281" y="0"></use><use xlink:href="#MJMAIN-76" x="2560" y="0"></use><use xlink:href="#MJMAIN-65" x="3088" y="0"></use><use xlink:href="#MJMAIN-20" x="3533" y="0"></use><use xlink:href="#MJMAIN-69" x="3783" y="0"></use><use xlink:href="#MJMAIN-64" x="4062" y="0"></use><use xlink:href="#MJMAIN-65" x="4618" y="0"></use><use xlink:href="#MJMAIN-6E" x="5063" y="0"></use><use xlink:href="#MJMAIN-74" x="5619" y="0"></use><use xlink:href="#MJMAIN-69" x="6009" y="0"></use><use xlink:href="#MJMAIN-74" x="6287" y="0"></use><use xlink:href="#MJMAIN-79" x="6677" y="0"></use></g><g transform="translate(0,-1327)"><use xlink:href="#MJMAIN-65"></use><use xlink:href="#MJMAIN-71" x="444" y="0"></use><use xlink:href="#MJMAIN-75" x="973" y="0"></use><use xlink:href="#MJMAIN-61" x="1529" y="0"></use><use xlink:href="#MJMAIN-74" x="2030" y="0"></use><use xlink:href="#MJMAIN-69" x="2419" y="0"></use><use xlink:href="#MJMAIN-6F" x="2698" y="0"></use><use xlink:href="#MJMAIN-6E" x="3198" y="0"></use><use xlink:href="#MJMAIN-73" x="3755" y="0"></use><use xlink:href="#MJMAIN-20" x="4149" y="0"></use><g transform="translate(4400,0)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g><g transform="translate(5679,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-61" x="250" y="0"></use><use xlink:href="#MJMAIN-6E" x="751" y="0"></use><use xlink:href="#MJMAIN-64" x="1307" y="0"></use><use xlink:href="#MJMAIN-20" x="1864" y="0"></use></g><g transform="translate(7794,0)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-32" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g></g></g><g transform="translate(38216,0)"><g id="mjx-eqn-1" transform="translate(0,1277)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-31" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g><g id="mjx-eqn-2" transform="translate(0,-25)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-32" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g><g transform="translate(0,-1327)"><g id="mjx-eqn-7"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-37" x="389" y="0"></use><use xlink:href="#MJMAIN-29" x="890" y="0"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-269">\begin{align}
    v + w & = 0  & \text{Given} \tag 1 \\
       -w & = -w + 0 & \text{additive identity} \tag 2 \\
   -w + 0 & = -w + (v + w) & \text{equations $(1)$ and $(2)$} \\
\end{align}</script></li>
</ul><p data-anchor-id="0mja">本例中第一、第二行的自动编号被 <code>\tag</code> 语句覆盖，第三行的编号为自动编号。</p><blockquote data-anchor-id="4aze" class="white-blockquote">
  <p><strong>@joyphys</strong> 如何引用 <code>\tag</code> 标记的公式？ <br>
  <span style="text-align: center; display: block;"> 使用 <code>\tag{yourtag}</code> 来标记公式，然后在 <code>\tag</code> 之后加上 <code>\label{yourlabel}</code> </span></p>
</blockquote><div class="md-section-divider"></div><h1 data-anchor-id="wm3e" id="四条件表达式使用参考">四、条件表达式使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="um90" id="1如何输入一个条件表达式">1．如何输入一个条件表达式</h2><p data-anchor-id="oys8">使用 <code>\begin{cases}…\end{cases}</code> 来创造一组条件表达式，在每一行条件中插入 <code>&amp;</code> 来指定需要对齐的内容，并在每一行结尾处使用 <code>\\</code>。</p><ul data-anchor-id="80dd">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="phmc" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">    f</span><span class="pun">(</span><span class="pln">n</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span></code></li><li class="L2"><code><span class="pln">        \begin</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">            n</span><span class="pun">/</span><span class="lit">2</span><span class="pun">,</span><span class="pln">  </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> even</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">            </span><span class="lit">3n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">,</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> odd</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">        \end</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="ji4g">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-270-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.232ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 13020.46123598898 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><use xlink:href="#MJMATHI-6E" x="940" y="0"></use><use xlink:href="#MJMAIN-29" x="1540" y="0"></use><use xlink:href="#MJMAIN-3D" x="2207" y="0"></use><g transform="translate(3264,0)"><use xlink:href="#MJSZ3-7B"></use><g transform="translate(917,0)"><g transform="translate(-16,0)"><g transform="translate(0,550)"><use xlink:href="#MJMATHI-6E"></use><use xlink:href="#MJMAIN-2F" x="600" y="0"></use><use xlink:href="#MJMAIN-32" x="1101" y="0"></use><use xlink:href="#MJMAIN-2C" x="1601" y="0"></use></g><g transform="translate(0,-650)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMATHI-6E" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1323" y="0"></use><use xlink:href="#MJMAIN-31" x="2323" y="0"></use><use xlink:href="#MJMAIN-2C" x="2824" y="0"></use></g></g><g transform="translate(4087,0)"><g transform="translate(0,550)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-65" x="1174" y="0"></use><use xlink:href="#MJMAIN-76" x="1618" y="0"></use><use xlink:href="#MJMAIN-65" x="2147" y="0"></use><use xlink:href="#MJMAIN-6E" x="2591" y="0"></use></g></g><g transform="translate(0,-650)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-6F" x="1174" y="0"></use><use xlink:href="#MJMAIN-64" x="1674" y="0"></use><use xlink:href="#MJMAIN-64" x="2231" y="0"></use></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-270">
    f(n) =
        \begin{cases}
            n/2,  & \text{if $n$ is even} \\
            3n+1, & \text{if $n$ is odd} \\
        \end{cases}
</script></li>
</ul><blockquote data-anchor-id="rbxf" class="white-blockquote">
  <p><strong>@Sherlockk</strong> 用 markdown+math 编辑时 <code>\text</code> 内需用 <code>\(equation\)</code></p>
</blockquote><div class="md-section-divider"></div><h2 data-anchor-id="r6xq" id="2如何输入一个左侧对齐的条件表达式">2．如何输入一个左侧对齐的条件表达式</h2><p data-anchor-id="ro71">若想让文字在<strong>左侧对齐显示</strong>，则有如下方式：</p><ul data-anchor-id="2pas">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="g10j" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">    \left</span><span class="pun">.</span></code></li><li class="L2"><code><span class="pln">        \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">l</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">            \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> even</span><span class="pun">:}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> n</span><span class="pun">/</span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">            \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> odd</span><span class="pun">:}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3n</span><span class="pun">+</span><span class="lit">1</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">        \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">    \right\}</span></code></li><li class="L7"><code><span class="pln">    </span><span class="pun">=</span><span class="pln">f</span><span class="pun">(</span><span class="pln">n</span><span class="pun">)</span></code></li><li class="L8"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="5y40">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-271-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.232ex; height: 5.676ex; vertical-align: -2.317ex; margin: 1px 0px;" viewBox="0 -1470.5516853480244 13020.46123598898 2441.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(0,628)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-65" x="1174" y="0"></use><use xlink:href="#MJMAIN-76" x="1618" y="0"></use><use xlink:href="#MJMAIN-65" x="2147" y="0"></use><use xlink:href="#MJMAIN-6E" x="2591" y="0"></use><use xlink:href="#MJMAIN-3A" x="3148" y="0"></use></g></g><g transform="translate(0,-729)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-6F" x="1174" y="0"></use><use xlink:href="#MJMAIN-64" x="1674" y="0"></use><use xlink:href="#MJMAIN-64" x="2231" y="0"></use><use xlink:href="#MJMAIN-3A" x="2787" y="0"></use></g></g></g><g transform="translate(5847,0)"><g transform="translate(0,628)"><use xlink:href="#MJMATHI-6E"></use><use xlink:href="#MJMAIN-2F" x="600" y="0"></use><use xlink:href="#MJMAIN-32" x="1101" y="0"></use></g><g transform="translate(0,-729)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMATHI-6E" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1323" y="0"></use><use xlink:href="#MJMAIN-31" x="2323" y="0"></use></g></g></g><use xlink:href="#MJSZ3-7D" x="9005" y="-1"></use><use xlink:href="#MJMAIN-3D" x="10034" y="0"></use><use xlink:href="#MJMATHI-66" x="11090" y="0"></use><use xlink:href="#MJMAIN-28" x="11640" y="0"></use><use xlink:href="#MJMATHI-6E" x="12030" y="0"></use><use xlink:href="#MJMAIN-29" x="12630" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-271">
    \left.
        \begin{array}{l}
            \text{if $n$ is even:} & n/2 \\
            \text{if $n$ is odd:} & 3n+1 \\
        \end{array}
    \right\}
    =f(n)
</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="ea3p" id="3如何使条件表达式适配行高">3．如何使条件表达式适配行高</h2><p data-anchor-id="icsx">在一些情况下，条件表达式中某些行的行高为非标准高度，此时使用 <code>\\[2ex]</code> 语句代替该行末尾的 <code>\\</code> 来让编辑器适配。</p><ul data-anchor-id="0b1q">
<li>例子：</li>
</ul><table data-anchor-id="wqtk" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">不适配[2ex]</th>
</tr>
</thead>
</table><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="pb11" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">f</span><span class="pun">(</span><span class="pln">n</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">        \frac</span><span class="pun">{</span><span class="pln">n</span><span class="pun">}{</span><span class="lit">2</span><span class="pun">},</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> even</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">        </span><span class="lit">3n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">,</span><span class="pln">        </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> odd</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><table data-anchor-id="yl93" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">适配[2ex]</th>
</tr>
</thead>
</table><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="mosv" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">f</span><span class="pun">(</span><span class="pln">n</span><span class="pun">)</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">        \frac</span><span class="pun">{</span><span class="pln">n</span><span class="pun">}{</span><span class="lit">2</span><span class="pun">},</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> even</span><span class="pun">}</span><span class="pln"> \\</span><span class="pun">[</span><span class="lit">2ex</span><span class="pun">]</span></code></li><li class="L4"><code><span class="pln">        </span><span class="lit">3n</span><span class="pun">+</span><span class="lit">1</span><span class="pun">,</span><span class="pln">        </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{</span><span class="kwd">if</span><span class="pln"> $n$ </span><span class="kwd">is</span><span class="pln"> odd</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="qp1b">
<li>显示：</li>
</ul><table data-anchor-id="uwc2" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;">不适配[2ex]</th>
 <th style="text-align:center;">适配[2ex]</th>
</tr>
</thead>
<tbody><tr>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-272-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.347ex; height: 7.066ex; vertical-align: -3.012ex; margin: 1px 0px;" viewBox="0 -1770.5516853480244 13076.46123598898 3041.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><use xlink:href="#MJMATHI-6E" x="940" y="0"></use><use xlink:href="#MJMAIN-29" x="1540" y="0"></use><use xlink:href="#MJMAIN-3D" x="2207" y="0"></use><g transform="translate(3264,0)"><use xlink:href="#MJSZ4-7B"></use><g transform="translate(973,0)"><g transform="translate(-16,0)"><g transform="translate(0,536)"><g transform="translate(120,0)"><rect stroke="none" width="720" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-6E" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="110" y="-686"></use></g><use xlink:href="#MJMAIN-2C" x="1127" y="0"></use></g><g transform="translate(0,-957)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMATHI-6E" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1323" y="0"></use><use xlink:href="#MJMAIN-31" x="2323" y="0"></use><use xlink:href="#MJMAIN-2C" x="2824" y="0"></use></g></g><g transform="translate(4087,0)"><g transform="translate(0,536)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-65" x="1174" y="0"></use><use xlink:href="#MJMAIN-76" x="1618" y="0"></use><use xlink:href="#MJMAIN-65" x="2147" y="0"></use><use xlink:href="#MJMAIN-6E" x="2591" y="0"></use></g></g><g transform="translate(0,-957)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-6F" x="1174" y="0"></use><use xlink:href="#MJMAIN-64" x="1674" y="0"></use><use xlink:href="#MJMAIN-64" x="2231" y="0"></use></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-272">
f(n) = 
    \begin{cases}
        \frac{n}{2}, & \text{if $n$ is even} \\
        3n+1, & \text{if $n$ is odd} \\
    \end{cases}
</script></td>
 <td style="text-align:center;"><span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-273-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.579ex; height: 8.571ex; vertical-align: -3.822ex; margin: 1px 0px;" viewBox="0 -2106.7811853480243 13159.46123598898 3713.5623706960487"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-66"></use><use xlink:href="#MJMAIN-28" x="550" y="0"></use><use xlink:href="#MJMATHI-6E" x="940" y="0"></use><use xlink:href="#MJMAIN-29" x="1540" y="0"></use><use xlink:href="#MJMAIN-3D" x="2207" y="0"></use><g transform="translate(3264,0)"><g transform="translate(0,2086)"><use xlink:href="#MJSZ4-23A7" x="0" y="-900"></use><g transform="translate(0,-971.8101692546583) scale(1,0.35630279503105566)"><use xlink:href="#MJSZ4-23AA"></use></g><use xlink:href="#MJSZ4-23A8" x="0" y="-2087"></use><g transform="translate(0,-2808.5396692546583) scale(1,0.35630279503105566)"><use xlink:href="#MJSZ4-23AA"></use></g><use xlink:href="#MJSZ4-23A9" x="0" y="-2774"></use></g><g transform="translate(1056,0)"><g transform="translate(-16,0)"><g transform="translate(0,966)"><g transform="translate(120,0)"><rect stroke="none" width="720" height="60" x="0" y="220"></rect><use xlink:href="#MJMATHI-6E" x="60" y="676"></use><use xlink:href="#MJMAIN-32" x="110" y="-686"></use></g><use xlink:href="#MJMAIN-2C" x="1127" y="0"></use></g><g transform="translate(0,-1387)"><use xlink:href="#MJMAIN-33"></use><use xlink:href="#MJMATHI-6E" x="500" y="0"></use><use xlink:href="#MJMAIN-2B" x="1323" y="0"></use><use xlink:href="#MJMAIN-31" x="2323" y="0"></use><use xlink:href="#MJMAIN-2C" x="2824" y="0"></use></g></g><g transform="translate(4087,0)"><g transform="translate(0,966)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-65" x="1174" y="0"></use><use xlink:href="#MJMAIN-76" x="1618" y="0"></use><use xlink:href="#MJMAIN-65" x="2147" y="0"></use><use xlink:href="#MJMAIN-6E" x="2591" y="0"></use></g></g><g transform="translate(0,-1387)"><use xlink:href="#MJMAIN-69"></use><use xlink:href="#MJMAIN-66" x="278" y="0"></use><use xlink:href="#MJMAIN-20" x="585" y="0"></use><use xlink:href="#MJMATHI-6E" x="835" y="0"></use><g transform="translate(1436,0)"><use xlink:href="#MJMAIN-20"></use><use xlink:href="#MJMAIN-69" x="250" y="0"></use><use xlink:href="#MJMAIN-73" x="529" y="0"></use><use xlink:href="#MJMAIN-20" x="923" y="0"></use><use xlink:href="#MJMAIN-6F" x="1174" y="0"></use><use xlink:href="#MJMAIN-64" x="1674" y="0"></use><use xlink:href="#MJMAIN-64" x="2231" y="0"></use></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-273">
f(n) = 
    \begin{cases}
        \frac{n}{2}, & \text{if $n$ is even} \\[2ex]
        3n+1, & \text{if $n$ is odd} \\
    \end{cases}
</script></td>
</tr>
</tbody></table><p data-anchor-id="u4w8"><strong>一个 <code>[ex]</code> 指一个 "X-Height"，即 x 字母高度。可以根据情况指定多个 <code>[ex]</code>，如 <code>[3ex]</code>、<code>[4ex]</code> 等。</strong> <br>
其实可以在任意换行处使用 <code>\\[2ex]</code> 语句，只要你觉得合适。</p><div class="md-section-divider"></div><h1 data-anchor-id="c535" id="五数组与表格使用参考">五、数组与表格使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="hhq5" id="1如何输入一个数组或表格">1．如何输入一个数组或表格</h2><p data-anchor-id="pj3o">通常，一个格式化后的表格比单纯的文字或排版后的文字更具有可读性。 <br>
数组和表格均以 <code>\begin{array}</code> 开头，并在其后定义列数及每一列的文本对齐属性，<code>c</code> <code>l</code> <code>r</code> 分别代表居中、左对齐及右对齐。若需要插入垂直分割线，在定义式中插入 <code>|</code> ，若要插入水平分割线，在下一行输入前插入 <code>\hline</code> 。 <br>
与矩阵相似，每行元素间均须要插入 <code>&amp;</code> ，每行元素以 <code>\\</code> 结尾，最后以 <code>\ end{array}</code> 结束数组。 <br>
使用单个数组或表格时无需声明 <code>$</code> 或 <code>$$</code> 符号。</p><ul data-anchor-id="aqup">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="g5m2" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">lcr</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    n </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{左对齐}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{居中对齐}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \text</span><span class="pun">{右对齐}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline</span></code></li><li class="L3"><code><span class="pln">    </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0.24</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">125</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">    </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">-</span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">189</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">-</span><span class="lit">8</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="pun">-</span><span class="lit">20</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2000</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pun">+</span><span class="lit">10i</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="9j0w">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-274-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 31.042ex; height: 12.162ex; vertical-align: -5.56ex; margin: 1px 0px;" viewBox="0 -2872.911001950341 13374.971085838832 5245.822003900682"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><use xlink:href="#MJMATHI-6E" x="0" y="1773"></use><use xlink:href="#MJMAIN-31" x="50" y="462"></use><use xlink:href="#MJMAIN-32" x="50" y="-738"></use><use xlink:href="#MJMAIN-33" x="50" y="-1938"></use></g><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="5205" transform="translate(1485,-2353)"></line><g transform="translate(1985,0)"><g transform="translate(0,1773)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">左</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">对</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">齐</text></g></g><g transform="translate(0,462)"><use xlink:href="#MJMAIN-30"></use><use xlink:href="#MJMAIN-2E" x="500" y="0"></use><use xlink:href="#MJMAIN-32" x="779" y="0"></use><use xlink:href="#MJMAIN-34" x="1279" y="0"></use></g><g transform="translate(0,-738)"><use xlink:href="#MJMAIN-2212"></use><use xlink:href="#MJMAIN-31" x="778" y="0"></use></g><g transform="translate(0,-1938)"><use xlink:href="#MJMAIN-2212"></use><g transform="translate(778,0)"><use xlink:href="#MJMAIN-32"></use><use xlink:href="#MJMAIN-30" x="500" y="0"></use></g></g></g><g transform="translate(5379,0)"><g transform="translate(0,1773)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">居</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">中</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">对</text></g><g transform="translate(2393,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">齐</text></g></g><use xlink:href="#MJMAIN-31" x="1345" y="462"></use><g transform="translate(845,-738)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-38" x="500" y="0"></use><use xlink:href="#MJMAIN-39" x="1001" y="0"></use></g><g transform="translate(594,-1938)"><use xlink:href="#MJMAIN-32"></use><use xlink:href="#MJMAIN-30" x="500" y="0"></use><use xlink:href="#MJMAIN-30" x="1001" y="0"></use><use xlink:href="#MJMAIN-30" x="1501" y="0"></use></g></g><g transform="translate(9571,0)"><g transform="translate(676,1773)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">右</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">对</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">齐</text></g></g><g transform="translate(1568,462)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-32" x="500" y="0"></use><use xlink:href="#MJMAIN-35" x="1001" y="0"></use></g><g transform="translate(1790,-738)"><use xlink:href="#MJMAIN-2212"></use><use xlink:href="#MJMAIN-38" x="778" y="0"></use></g><g transform="translate(0,-1938)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-2B" x="722" y="0"></use><g transform="translate(1723,0)"><use xlink:href="#MJMAIN-31"></use><use xlink:href="#MJMAIN-30" x="500" y="0"></use></g><use xlink:href="#MJMATHI-69" x="2724" y="0"></use></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="13040" transform="translate(0,1325)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-274">\begin{array}{c|lcr}
    n & \text{左对齐} & \text{居中对齐} & \text{右对齐} \\
    \hline
    1 & 0.24 & 1 & 125 \\
    2 & -1 & 189 & -8 \\
    3 & -20 & 2000 & 1+10i \\
\end{array}</script></li>
</ul><div class="md-section-divider"></div><h2 data-anchor-id="fw3u" id="2如何输入一个嵌套的数组或表格">2．如何输入一个嵌套的数组或表格</h2><p data-anchor-id="fqvv">多个数组\表格可 <strong>互相嵌套</strong> 并组成一组数组或表格。 <br>
使用嵌套前必须声明 <code>$$</code> 符号。</p><ul data-anchor-id="h1kv">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="1o03" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">总表格</span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第一行内分成两列</span></code></li><li class="L3"><code><span class="pln">        \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">cccc</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第一列</span><span class="str">"最小值"</span><span class="pun">数组</span></code></li><li class="L4"><code><span class="pln">            \text</span><span class="pun">{</span><span class="pln">min</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">            \hline</span></code></li><li class="L6"><code><span class="pln">            </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">            </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> \\</span></code></li><li class="L8"><code><span class="pln">            </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L9"><code><span class="pln">            </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L0"><code><span class="pln">        \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">        </span><span class="pun">&amp;</span></code></li><li class="L2"><code><span class="pln">        \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">cccc</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第二列</span><span class="str">"最大值"</span><span class="pun">数组</span></code></li><li class="L3"><code><span class="pln">            \text</span><span class="pun">{</span><span class="pln">max</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">            \hline</span></code></li><li class="L5"><code><span class="pln">            </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">            </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">            </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L8"><code><span class="pln">            </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L9"><code><span class="pln">        \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L0"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第一行表格组结束</span></code></li><li class="L1"><code><span class="pln">    \\</span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">|</span><span class="pln">cccc</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第二行</span><span class="pln"> </span><span class="typ">Delta</span><span class="pln"> </span><span class="pun">值数组</span></code></li><li class="L3"><code><span class="pln">        \Delta </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L4"><code><span class="pln">        \hline</span></code></li><li class="L5"><code><span class="pln">        </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> \\</span></code></li><li class="L6"><code><span class="pln">        </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> \\</span></code></li><li class="L7"><code><span class="pln">        </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> \\</span></code></li><li class="L8"><code><span class="pln">        </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">3</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">2</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">1</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> </span><span class="lit">0</span><span class="pln"> \\</span></code></li><li class="L9"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">第二行表格结束</span></code></li><li class="L0"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span><span class="pln"> </span><span class="pun">%</span><span class="pln"> </span><span class="pun">总表格结束</span></code></li><li class="L1"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="64n1">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-275-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 45.058ex; height: 30ex; vertical-align: -14.479ex; margin: 1px 0px;" viewBox="0 -6700.605685348025 19410.84494395593 12901.21137069605"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(0,3315)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(0,2350)"><use xlink:href="#MJMAIN-6D"></use><use xlink:href="#MJMAIN-69" x="833" y="0"></use><use xlink:href="#MJMAIN-6E" x="1112" y="0"></use></g><use xlink:href="#MJMAIN-30" x="584" y="1150"></use><use xlink:href="#MJMAIN-31" 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y="-1250"></use><use xlink:href="#MJMAIN-33" x="0" y="-2450"></use></g><g transform="translate(7748,0)"><use xlink:href="#MJMAIN-33" x="0" y="2350"></use><use xlink:href="#MJMAIN-33" x="0" y="1150"></use><use xlink:href="#MJMAIN-33" x="0" y="-50"></use><use xlink:href="#MJMAIN-33" x="0" y="-1250"></use><use xlink:href="#MJMAIN-33" x="0" y="-2450"></use></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="8649" transform="translate(0,2056)"></line></g></g></g></g><g transform="translate(5568,-3316)"><g transform="translate(167,0)"><g transform="translate(384,0)"><use xlink:href="#MJMAIN-394" x="0" y="2350"></use><use xlink:href="#MJMAIN-30" x="166" y="1150"></use><use xlink:href="#MJMAIN-31" x="166" y="-50"></use><use xlink:href="#MJMAIN-32" x="166" y="-1250"></use><use xlink:href="#MJMAIN-33" x="166" y="-2450"></use></g><line stroke-width="30.08" x2="15.038764011018364" x1="15.038764011018364" y1="0" y2="6230" 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\begin{array}{c} % 总表格
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            1 & 0 & 1 & 1 & 1 \\
            2 & 0 & 1 & 2 & 2 \\
            3 & 0 & 1 & 2 & 3 \\
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        \begin{array}{c|cccc} % 第二列"最大值"数组
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            3 & 3 & 3 & 3 & 3 \\
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</ul><div class="md-section-divider"></div><h2 data-anchor-id="t5yk" id="3如何输入一个方程组">3．如何输入一个方程组</h2><p data-anchor-id="z8lz">可以使用 <code>\begin{array} … \end{array}</code> 和 <code>\left\{ … \right.</code> 来创建一个方程组：</p><ul data-anchor-id="hjr0">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="rbzb" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\left\{ </span></code></li><li class="L2"><code><span class="pln">    \begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">c</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">        a_1x</span><span class="pun">+</span><span class="pln">b_1y</span><span class="pun">+</span><span class="pln">c_1z</span><span class="pun">=</span><span class="pln">d_1 \\ </span></code></li><li class="L4"><code><span class="pln">        a_2x</span><span class="pun">+</span><span class="pln">b_2y</span><span class="pun">+</span><span class="pln">c_2z</span><span class="pun">=</span><span class="pln">d_2 \\ </span></code></li><li class="L5"><code><span class="pln">        a_3x</span><span class="pun">+</span><span class="pln">b_3y</span><span class="pun">+</span><span class="pln">c_3z</span><span class="pun">=</span><span class="pln">d_3 \\</span></code></li><li class="L6"><code><span class="pln">    \end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">\right</span><span class="pun">.</span><span class="pln"> </span></code></li><li class="L8"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="djmg">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-276-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 23.861ex; height: 8.456ex; vertical-align: -3.707ex; margin: 1px 0px;" viewBox="0 -2074.0516853480244 10255.533456368894 3648.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(0,2054)"><use xlink:href="#MJSZ4-23A7" x="0" y="-900"></use><use xlink:href="#MJSZ4-23A8" x="0" y="-2054"></use><use xlink:href="#MJSZ4-23A9" x="0" y="-2708"></use></g><g transform="translate(1056,0)"><g transform="translate(-16,0)"><g transform="translate(0,1254)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="736" y="-213"></use></g></g><g transform="translate(0,-47)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="736" y="-213"></use></g></g><g transform="translate(0,-1348)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="736" y="-213"></use></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-276">
\left\{ 
    \begin{array}{c}
        a_1x+b_1y+c_1z=d_1 \\ 
        a_2x+b_2y+c_2z=d_2 \\ 
        a_3x+b_3y+c_3z=d_3 \\
    \end{array}
\right. 
</script></li>
</ul><p data-anchor-id="b2cp">或使用条件表达式组 <code>\begin{cases} … \end{cases}</code> 来实现相同效果：</p><ul data-anchor-id="adjr">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="u8xa" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    a_1x</span><span class="pun">+</span><span class="pln">b_1y</span><span class="pun">+</span><span class="pln">c_1z</span><span class="pun">=</span><span class="pln">d_1 \\ </span></code></li><li class="L2"><code><span class="pln">    a_2x</span><span class="pun">+</span><span class="pln">b_2y</span><span class="pun">+</span><span class="pln">c_2z</span><span class="pun">=</span><span class="pln">d_2 \\ </span></code></li><li class="L3"><code><span class="pln">    a_3x</span><span class="pun">+</span><span class="pln">b_3y</span><span class="pun">+</span><span class="pln">c_3z</span><span class="pun">=</span><span class="pln">d_3 \\</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">cases</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="6bsp">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-277-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 23.861ex; height: 7.992ex; vertical-align: -3.475ex; margin: 1px 0px;" viewBox="0 -1973.0516853480244 10255.533456368894 3446.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(0,1953)"><use xlink:href="#MJSZ4-23A7" x="0" y="-900"></use><use xlink:href="#MJSZ4-23A8" x="0" y="-1953"></use><use xlink:href="#MJSZ4-23A9" x="0" y="-2506"></use></g><g transform="translate(1056,0)"><g transform="translate(-16,0)"><g transform="translate(0,1153)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="736" y="-213"></use></g></g><g transform="translate(0,-47)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="736" y="-213"></use></g></g><g transform="translate(0,-1247)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="748" y="-213"></use><use xlink:href="#MJMATHI-78" x="983" y="0"></use><use xlink:href="#MJMAIN-2B" x="1778" y="0"></use><g transform="translate(2778,0)"><use xlink:href="#MJMATHI-62"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="607" y="-213"></use></g><use xlink:href="#MJMATHI-79" x="3662" y="0"></use><use xlink:href="#MJMAIN-2B" x="4381" y="0"></use><g transform="translate(5382,0)"><use xlink:href="#MJMATHI-63"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="613" y="-213"></use></g><use xlink:href="#MJMATHI-7A" x="6270" y="0"></use><use xlink:href="#MJMAIN-3D" x="7016" y="0"></use><g transform="translate(8072,0)"><use xlink:href="#MJMATHI-64"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="736" y="-213"></use></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-277">\begin{cases}
    a_1x+b_1y+c_1z=d_1 \\ 
    a_2x+b_2y+c_2z=d_2 \\ 
    a_3x+b_3y+c_3z=d_3 \\
\end{cases}</script></li>
</ul><div class="md-section-divider"></div><h1 data-anchor-id="91g3" id="六连分数使用参考">六、连分数使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="rhga" id="1如何输入一个连分式">1．如何输入一个连分式</h2><p data-anchor-id="ctyo">就像输入分式时使用 <code>\frac</code> 一样，使用 <code>\cfrac</code> 来创建一个连分数。</p><ul data-anchor-id="mylg">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="st1r" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">x </span><span class="pun">=</span><span class="pln"> a_0 </span><span class="pun">+</span><span class="pln"> \cfrac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_1 </span><span class="pun">+</span></code></li><li class="L2"><code><span class="pln">            \cfrac</span><span class="pun">{</span><span class="lit">2</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_2 </span><span class="pun">+</span></code></li><li class="L3"><code><span class="pln">              \cfrac</span><span class="pun">{</span><span class="lit">3</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_3 </span><span class="pun">+</span></code></li><li class="L4"><code><span class="pln">                \cfrac</span><span class="pun">{</span><span class="lit">4</span><span class="pun">^</span><span class="lit">4</span><span class="pun">}{</span><span class="pln">a_4 </span><span class="pun">+</span><span class="pln"> </span></code></li><li class="L5"><code><span class="pln">                  \cdots</span></code></li><li class="L6"><code><span class="pln">                </span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">              </span><span class="pun">}</span></code></li><li class="L8"><code><span class="pln">            </span><span class="pun">}</span></code></li><li class="L9"><code><span class="pln">          </span><span class="pun">}</span></code></li><li class="L0"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="qbx9">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-278-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 36.139ex; height: 16.795ex; vertical-align: -13.089ex; margin: 1px 0px;" viewBox="0 -1650.3501225568752 15550.812497697112 7230.769792194003"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMAIN-3D" x="850" y="0"></use><g transform="translate(1906,0)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="748" y="-213"></use></g><use xlink:href="#MJMAIN-2B" x="3112" y="0"></use><g transform="translate(4232,0)"><rect stroke="none" width="11197" height="60" x="0" y="220"></rect><g transform="translate(5121,764)"><g></g><use xlink:href="#MJMAIN-31"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-1534)"><g></g><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use><g transform="translate(2326,0)"><rect stroke="none" width="8631" height="60" x="0" y="220"></rect><g transform="translate(3838,703)"><g></g><use xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-1472)"><g></g><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use><g transform="translate(2326,0)"><rect stroke="none" width="6065" height="60" x="0" y="220"></rect><g transform="translate(2555,703)"><g></g><use xlink:href="#MJMAIN-33"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="555"></use></g><g transform="translate(60,-1492)"><g></g><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use><g transform="translate(2326,0)"><rect stroke="none" width="3498" height="60" x="0" y="220"></rect><g transform="translate(1272,703)"><g></g><use xlink:href="#MJMAIN-34"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="707" y="572"></use></g><g transform="translate(60,-764)"><g></g><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use><use xlink:href="#MJMAIN-22EF" x="2206" y="0"></use></g></g></g></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-278">
x = a_0 + \cfrac{1^2}{a_1 +
            \cfrac{2^2}{a_2 +
              \cfrac{3^2}{a_3 +
                \cfrac{4^4}{a_4 + 
                  \cdots
                }
              }
            }
          }
</script></li>
</ul><p data-anchor-id="l8q4">不要使用普通的 <code>\frac</code> 或 <code>\over</code> 来生成连分数，这样会看起来<strong>很恶心</strong>。</p><ul data-anchor-id="2qc4">
<li>反例：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="r262" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">x </span><span class="pun">=</span><span class="pln"> a_0 </span><span class="pun">+</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_1 </span><span class="pun">+</span></code></li><li class="L2"><code><span class="pln">            \frac</span><span class="pun">{</span><span class="lit">2</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_2 </span><span class="pun">+</span></code></li><li class="L3"><code><span class="pln">              \frac</span><span class="pun">{</span><span class="lit">3</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_3 </span><span class="pun">+</span></code></li><li class="L4"><code><span class="pln">                \frac</span><span class="pun">{</span><span class="lit">4</span><span class="pun">^</span><span class="lit">4</span><span class="pun">}{</span><span class="pln">a_4 </span><span class="pun">+</span><span class="pln"> </span></code></li><li class="L5"><code><span class="pln">                  \cdots</span></code></li><li class="L6"><code><span class="pln">                </span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">              </span><span class="pun">}</span></code></li><li class="L8"><code><span class="pln">            </span><span class="pun">}</span></code></li><li class="L9"><code><span class="pln">          </span><span class="pun">}</span></code></li><li class="L0"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="r2z1">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-279-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 26.757ex; height: 10.541ex; vertical-align: -6.95ex; margin: 1px 0px;" viewBox="0 -1562.1803233290761 11499.864680322837 4514.92163426261"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMAIN-3D" x="850" y="0"></use><g transform="translate(1906,0)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="748" y="-213"></use></g><use xlink:href="#MJMAIN-2B" x="3112" y="0"></use><g transform="translate(4232,0)"><rect stroke="none" width="7146" height="60" x="0" y="220"></rect><g transform="translate(3096,676)"><use xlink:href="#MJMAIN-31"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-981)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use><g transform="translate(2326,0)"><rect stroke="none" width="4580" height="60" x="0" y="220"></rect><g transform="translate(1952,404)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-724)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-61"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="748" y="-213"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2B" x="983" y="0"></use><g transform="translate(1365,0)"><rect stroke="none" width="2974" height="60" x="0" y="146"></rect><g transform="translate(1212,341)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-33"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="500" y="288"></use></g><g transform="translate(60,-741)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-61"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-33" x="529" y="-322"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2B" x="1130" y="0"></use><g transform="translate(1074,0)"><rect stroke="none" width="1660" height="60" x="0" y="95"></rect><g transform="translate(555,279)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-34"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-34" x="500" y="291"></use></g><g transform="translate(60,-321)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-61"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-34" x="529" y="-334"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2B" x="1130" y="0"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-22EF" x="1908" y="0"></use></g></g></g></g></g></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-279">
x = a_0 + \frac{1^2}{a_1 +
            \frac{2^2}{a_2 +
              \frac{3^2}{a_3 +
                \frac{4^4}{a_4 + 
                  \cdots
                }
              }
            }
          }
</script></li>
</ul><p data-anchor-id="tlsr">当然，你可以使用 <code>\frac</code> 来表达连分数的<strong>紧缩记法</strong>。</p><ul data-anchor-id="b7qo">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="x49h" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">x </span><span class="pun">=</span><span class="pln"> a_0 </span><span class="pun">+</span><span class="pln"> \frac</span><span class="pun">{</span><span class="lit">1</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_1 </span><span class="pun">+}</span></code></li><li class="L2"><code><span class="pln">          \frac</span><span class="pun">{</span><span class="lit">2</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_2 </span><span class="pun">+}</span></code></li><li class="L3"><code><span class="pln">          \frac</span><span class="pun">{</span><span class="lit">3</span><span class="pun">^</span><span class="lit">2</span><span class="pun">}{</span><span class="pln">a_3 </span><span class="pun">+}</span></code></li><li class="L4"><code><span class="pln">          \frac</span><span class="pun">{</span><span class="lit">4</span><span class="pun">^</span><span class="lit">4</span><span class="pun">}{</span><span class="pln">a_4 </span><span class="pun">+}</span></code></li><li class="L5"><code><span class="pln">          \cdots</span></code></li><li class="L6"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="g3dh">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-280-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 35.56ex; height: 5.676ex; vertical-align: -2.085ex; margin: 1px 0px;" viewBox="0 -1580.9584979221281 15328.590275474888 2453.224639237443"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-78"></use><use xlink:href="#MJMAIN-3D" x="850" y="0"></use><g transform="translate(1906,0)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-30" x="748" y="-213"></use></g><use xlink:href="#MJMAIN-2B" x="3112" y="0"></use><g transform="translate(4232,0)"><rect stroke="none" width="2104" height="60" x="0" y="220"></rect><g transform="translate(574,676)"><use xlink:href="#MJMAIN-31"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use></g></g><g transform="translate(6743,0)"><rect stroke="none" width="2104" height="60" x="0" y="220"></rect><g transform="translate(574,676)"><use xlink:href="#MJMAIN-32"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="557"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use></g></g><g transform="translate(9254,0)"><rect stroke="none" width="2104" height="60" x="0" y="220"></rect><g transform="translate(574,676)"><use xlink:href="#MJMAIN-33"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="707" y="555"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use></g></g><g transform="translate(11765,0)"><rect stroke="none" width="2104" height="60" x="0" y="220"></rect><g transform="translate(574,676)"><use xlink:href="#MJMAIN-34"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="707" y="572"></use></g><g transform="translate(60,-686)"><use xlink:href="#MJMATHI-61"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-34" x="748" y="-213"></use><use xlink:href="#MJMAIN-2B" x="1205" y="0"></use></g></g><use xlink:href="#MJMAIN-22EF" x="14156" y="0"></use></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-280">
x = a_0 + \frac{1^2}{a_1 +}
          \frac{2^2}{a_2 +}
          \frac{3^2}{a_3 +}
          \frac{4^4}{a_4 +}
          \cdots
</script></li>
</ul><p data-anchor-id="khqu">连分数通常都太大以至于不易排版，所以建议在连分数前后声明 <code>$$</code> 符号，或使用像 <code>[a0,a1,a2,a3,…]</code> 一样的紧缩记法。</p><div class="md-section-divider"></div><h1 data-anchor-id="0u1j" id="七交换图表使用参考">七、交换图表使用参考</h1><div class="md-section-divider"></div><h2 data-anchor-id="m3jg" id="1如何输入一个交换图表">1．如何输入一个交换图表</h2><blockquote data-anchor-id="7cnh" class="white-blockquote">
  <p>推荐使用 Cmd Markdown 自带的各种图功能，详见 <a href="https://www.zybuluo.com/mdeditor?url=https://www.zybuluo.com/static/editor/md-help.markdown#7-%E6%B5%81%E7%A8%8B%E5%9B%BE" target="_blank">Cmd Markdown 高阶语法手册</a>。</p>
</blockquote><p data-anchor-id="ghrl">使用一行 <code>\require{AMScd}</code> 语句来允许交换图表的显示。 <br>
声明交换图表后，语法与矩阵相似，在开头使用 <code>\begin{CD}</code>，在结尾使用 <code>\ end{CD}</code>，在中间插入图表元素，每个元素之间插入 <code>&amp;</code> ，并在每行结尾处使用 <code>\\</code>。</p><ul data-anchor-id="gqo5">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="7djf" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="typ">AMScd</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    A </span><span class="pun">@&gt;</span><span class="pln">a</span><span class="pun">&gt;&gt;</span><span class="pln"> B \\</span></code></li><li class="L4"><code><span class="pln">    </span><span class="lit">@V</span><span class="pln"> b V V\# </span><span class="lit">@VV</span><span class="pln"> c V \\</span></code></li><li class="L5"><code><span class="pln">    C </span><span class="pun">@&gt;&gt;</span><span class="pln">d</span><span class="pun">&gt;</span><span class="pln"> D \\</span></code></li><li class="L6"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="89m0">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-281-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 14.595ex; height: 12.857ex; vertical-align: -5.907ex; margin: 1px 0px;" viewBox="-76.60330189258536 -3008.2639777491027 6304.445680536614 5516.527955498205"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMATHI-41" x="5" y="1863"></use><g transform="translate(46,226)"><g><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-62" x="-430" y="0"></use></g><g transform="translate(0,1125)"><use xlink:href="#MJSZ1-23D0" x="0" y="-603"></use><g transform="translate(0,-1196.933774834437) scale(1,1.0662251655629138)"><use xlink:href="#MJSZ1-23D0"></use></g><use xlink:href="#MJSZ1-2193" x="0" y="-1749"></use></g></g><use xlink:href="#MJMATHI-43" x="0" y="-1711"></use></g><g transform="translate(1245,0)"><g transform="translate(-28,1863)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(235.32957941909584,0) scale(2.658821545336144,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="1875" y="0"></use><g transform="translate(993,712)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-61" x="396" y="141"></use></g></g><use xlink:href="#MJMAIN-23" x="1007" y="226"></use><g transform="translate(-14,-1711)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(235.32957941909584,0) scale(2.658821545336144,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="1875" y="0"></use><g transform="translate(995,-671)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-64" x="396" y="0"></use></g><g></g></g></g><g transform="translate(4565,0)"><use xlink:href="#MJMATHI-42" x="34" y="1863"></use><g transform="translate(80,226)"><g transform="translate(0,1125)"><use xlink:href="#MJSZ1-23D0" x="0" y="-603"></use><g transform="translate(0,-1196.933774834437) scale(1,1.0662251655629138)"><use xlink:href="#MJSZ1-23D0"></use></g><use xlink:href="#MJSZ1-2193" x="0" y="-1749"></use></g><g transform="translate(667,0)"><g><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-63"></use></g></g></g><use xlink:href="#MJMATHI-44" x="0" y="-1711"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-281">
\require{AMScd}
\begin{CD}
    A @>a>> B \\
    @V b V V\# @VV c V \\
    C @>>d> D \\
\end{CD}
</script></li>
</ul><p data-anchor-id="nyjd">其中，<code>@&gt;&gt;&gt;</code> 代表右箭头、<code>@&lt;&lt;&lt;</code> 代表左箭头、<code>@VVV</code> 代表下箭头、<code>@AAA</code> 代表上箭头、<code>@=</code> 代表水平双实线、<code>@|</code> 代表竖直双实线、<code>@.</code>代表没有箭头。 <br>
在 <code>@&gt;&gt;&gt;</code> 的 <code>&gt;&gt;&gt;</code> 之间任意插入文字即代表该箭头的注释文字。</p><ul data-anchor-id="aisc">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="gmrc" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="typ">AMDcd</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    A </span><span class="pun">@&gt;&gt;&gt;</span><span class="pln"> B </span><span class="pun">@&gt;{</span><span class="pln">\text</span><span class="pun">{</span><span class="pln">very </span><span class="kwd">long</span><span class="pln"> label</span><span class="pun">}}&gt;&gt;</span><span class="pln"> C \\</span></code></li><li class="L4"><code><span class="pln">    </span><span class="pun">@.</span><span class="pln"> </span><span class="lit">@AAA</span><span class="pln"> </span><span class="pun">@|</span><span class="pln"> \\</span></code></li><li class="L5"><code><span class="pln">    D </span><span class="pun">@=</span><span class="pln"> E </span><span class="pun">@&lt;&lt;&lt;</span><span class="pln"> F \\</span></code></li><li class="L6"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L7"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="2xir">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-282-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.232ex; height: 12.046ex; vertical-align: -5.56ex; margin: 1px 0px;" viewBox="0 -2843.365897053751 13009.571621571868 5186.731794107502"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><use xlink:href="#MJMATHI-41" x="39" y="1461"></use><use xlink:href="#MJMATHI-44" x="0" y="-2124"></use></g><g transform="translate(1313,0)"><g transform="translate(-28,1461)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(235.32957941909584,0) scale(2.658821545336144,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="1875" y="0"></use><g></g></g><g transform="translate(-14,-2124)"><use xlink:href="#MJMAIN-3D" x="-57" y="0"></use><g transform="translate(539.7758490089936,0) scale(2.2340557697523242,1)"><use xlink:href="#MJMAIN-3D"></use></g><use xlink:href="#MJMAIN-3D" x="2097" y="0"></use></g></g><g transform="translate(4633,0)"><use xlink:href="#MJMATHI-42" x="2" y="1461"></use><g transform="translate(48,-187)"><g transform="translate(0,1125)"><use xlink:href="#MJSZ1-2191" x="0" y="-601"></use><g transform="translate(0,-1194.933774834437) scale(1,1.0662251655629138)"><use xlink:href="#MJSZ1-23D0"></use></g><use xlink:href="#MJSZ1-23D0" x="0" y="-1749"></use></g></g><use xlink:href="#MJMATHI-45" x="0" y="-2124"></use></g><g transform="translate(5897,0)"><g transform="translate(-28,1461)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(-69.05716561869235,0) scale(6.261031545783342,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="4072" y="0"></use><g transform="translate(56,769)"><g transform="translate(280,100)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-76"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-65" x="528" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-72" x="972" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-79" x="1365" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-20" x="1894" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C" x="2144" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6F" x="2423" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6E" x="2923" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-67" x="3480" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-20" x="3980" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C" x="4231" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-61" x="4509" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-62" x="5010" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-65" x="5566" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-6C" x="6011" y="0"></use></g></g></g><g transform="translate(-28,-2124)"><use xlink:href="#MJMAIN-2190" x="-56" y="0"></use><g transform="translate(210.08135897147156,0) scale(6.259392201521047,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2212" x="4322" y="0"></use><g></g></g></g><g transform="translate(11415,0)"><use xlink:href="#MJMATHI-43" x="0" y="1461"></use><g transform="translate(130,-187)"><g transform="translate(0,1125)"><use xlink:href="#MJMAIN-2225" x="0" y="-751"></use><use xlink:href="#MJMAIN-2225" x="0" y="-1499"></use></g></g><use xlink:href="#MJMATHI-46" x="5" y="-2124"></use></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-282">
\require{AMDcd}
\begin{CD}
    A @>>> B @>{\text{very long label}}>> C \\
    @. @AAA @| \\
    D @= E @<<< F \\
\end{CD}
</script></li>
</ul><p data-anchor-id="814a">在本例中，<code>very long label</code> 自动延长了它所在箭头以及对应箭头的长度，因而交换图表十分适合进行化学反应式的书写。</p><ul data-anchor-id="rslv">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="xd49" style=""><ol class="linenums"><li class="L0"><code><span class="pln">$$</span></code></li><li class="L1"><code><span class="pln">\require</span><span class="pun">{</span><span class="typ">AMDcd</span><span class="pun">}</span></code></li><li class="L2"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L3"><code><span class="pln">    \rm</span><span class="pun">{</span><span class="pln">RCOHR</span><span class="pun">^{</span><span class="str">'}SO_3Na} @&gt;{\large\text{Hydrolysis, $\Delta$, Dil.HCl}}&gt;&gt; \rm{(RCOR^{'</span><span class="pun">})+</span><span class="typ">NaCl</span><span class="pun">+</span><span class="pln">SO_2</span><span class="pun">+</span><span class="pln"> H_2O</span><span class="pun">}</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">CD</span><span class="pun">}</span></code></li><li class="L5"><code><span class="pln">$$</span></code></li></ol></pre><ul data-anchor-id="j3f7">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-655-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 72.162ex; height: 4.17ex; vertical-align: -1.622ex; margin: 1px 0px;" viewBox="0 -1148.2786567004225 31070.425941241574 1796.5573134008453"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(-16,0)"><g transform="translate(0,-378)"><use xlink:href="#MJMAIN-52"></use><use xlink:href="#MJMAIN-43" x="736" y="0"></use><use xlink:href="#MJMAIN-4F" x="1459" y="0"></use><use xlink:href="#MJMAIN-48" x="2237" y="0"></use><g transform="translate(2988,0)"><use xlink:href="#MJMAIN-52"></use><g transform="translate(736,412)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2032" x="0" y="513"></use></g></g><use xlink:href="#MJMAIN-53" x="4032" y="0"></use><g transform="translate(4589,0)"><use xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-33" x="1100" y="-213"></use></g><use xlink:href="#MJMAIN-4E" x="5821" y="0"></use><use xlink:href="#MJMAIN-61" x="6572" y="0"></use></g></g><g transform="translate(7557,0)"><g transform="translate(-28,-378)"><use xlink:href="#MJMAIN-2212" x="-85" y="0"></use><g transform="translate(-610.3087475823179,0) scale(12.666375711033348,1)"><use xlink:href="#MJMAIN-2212"></use></g><use xlink:href="#MJMAIN-2192" x="7979" y="0"></use><g transform="translate(56,797)"><g transform="translate(280,100)"><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-48"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-79" x="750" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-64" x="1279" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-72" x="1835" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-6F" x="2228" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-6C" x="2728" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-79" x="3007" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-73" x="3535" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-69" x="3930" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-73" x="4208" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-2C" x="4603" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-20" x="4881" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-394" x="5132" y="0"></use><g transform="translate(5061,0)"><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-2C"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-20" x="278" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-44" x="529" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-69" x="1293" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-6C" x="1572" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-2E" x="1850" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-48" x="2129" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-43" x="2879" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-6C" x="3602" y="0"></use></g></g></g></g></g><g transform="translate(16982,0)"><g transform="translate(0,-378)"><use xlink:href="#MJMAIN-28"></use><use xlink:href="#MJMAIN-52" x="389" y="0"></use><use xlink:href="#MJMAIN-43" x="1126" y="0"></use><use xlink:href="#MJMAIN-4F" x="1848" y="0"></use><g transform="translate(2627,0)"><use xlink:href="#MJMAIN-52"></use><g transform="translate(736,412)"><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-2032" x="0" y="513"></use></g></g><use xlink:href="#MJMAIN-29" x="3671" y="0"></use><use xlink:href="#MJMAIN-2B" x="4283" y="0"></use><use xlink:href="#MJMAIN-4E" x="5284" y="0"></use><use xlink:href="#MJMAIN-61" x="6034" y="0"></use><use xlink:href="#MJMAIN-43" x="6535" y="0"></use><use xlink:href="#MJMAIN-6C" x="7257" y="0"></use><use xlink:href="#MJMAIN-2B" x="7758" y="0"></use><use xlink:href="#MJMAIN-53" x="8759" y="0"></use><g transform="translate(9315,0)"><use xlink:href="#MJMAIN-4F"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1100" y="-213"></use></g><use xlink:href="#MJMAIN-2B" x="10770" y="0"></use><g transform="translate(11771,0)"><use xlink:href="#MJMAIN-48"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1061" y="-213"></use></g><use xlink:href="#MJMAIN-4F" x="12975" y="0"></use></g></g></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-655">
\require{AMDcd}
\begin{CD}
    \rm{RCOHR^{'}SO_3Na} @>{\large\text{Hydrolysis, $\Delta$, Dil.HCl}}>> \rm{(RCOR^{'})+NaCl+SO_2+ H_2O}
\end{CD}
</script></li>
</ul><div class="md-section-divider"></div><h1 data-anchor-id="shvv" id="八一些特殊的注意事项">八、一些特殊的注意事项</h1><table data-anchor-id="t85l" class="table table-striped-white table-bordered">
<thead>
<tr>
 <th style="text-align:center;"><strong>!! 本段内容为个人翻译，可能有不准确之处 !!</strong></th>
</tr>
</thead>
</table><p data-anchor-id="uxix">These are issues that won't affect the 
correctness of formulas, but might make them look significantly better 
or worse. Beginners should feel free to ignore this advice; someone else
 will correct it for them, or more likely nobody will care.</p><p data-anchor-id="wosx">现在指出的小问题并不会影响公式的正确显示，但能让它们看起来明显更好看。初学者可无视这些建议，自然会有强迫症患者替你们改掉它的，或者更可能地，不会有人在意这些细节。</p><p data-anchor-id="ct2f">Don't use <code>\frac</code>
 in exponents or limits of integrals; it looks bad and can be confusing,
 which is why it is rarely done in professional mathematical 
typesetting. Write the fraction horizontally, with a slash:</p><p data-anchor-id="iu6l">在以 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-643-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.042ex; height: 1.158ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -464.0516853480245 466.5 496.10337069604896"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-65"></use></g></svg></span><script type="math/tex" id="MathJax-Element-643">e</script> 为底的指数函数、极限和积分中尽量不要使用 <code>\frac</code> 符号——它会使整段函数看起来很奇怪并可能产生歧义，因此它在专业数学排版中几乎从不出现。可试着横着写这些分式，中间使用斜线间隔 <code>/</code> （用斜线代替分数线）。</p><ul data-anchor-id="7pkr">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="a6fe" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Bad</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="typ">Better</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \large e</span><span class="pun">^{</span><span class="pln">i\frac</span><span class="pun">{</span><span class="pln">\pi</span><span class="pun">}</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \quad e</span><span class="pun">^{</span><span class="pln">\frac</span><span class="pun">{</span><span class="pln">i\pi</span><span class="pun">}</span><span class="lit">2</span><span class="pun">}&amp;</span><span class="pln"> \large e</span><span class="pun">^{</span><span class="pln">i\pi</span><span class="pun">/</span><span class="lit">2</span><span class="pun">}</span><span class="pln"> \\</span><span class="pun">[</span><span class="lit">2ex</span><span class="pun">]</span></code></li><li class="L4"><code><span class="pln">    \int_</span><span class="pun">{-</span><span class="pln">\frac\pi2</span><span class="pun">}^</span><span class="pln">\frac\pi2 \s</span><span class="kwd">in</span><span class="pln"> x\,dx </span><span class="pun">&amp;</span><span class="pln"> \int_</span><span class="pun">{-</span><span class="pln">\pi</span><span class="pun">/</span><span class="lit">2</span><span class="pun">}^{</span><span class="pln">\pi</span><span class="pun">/</span><span class="lit">2</span><span class="pun">}</span><span class="pln">\s</span><span class="kwd">in</span><span class="pln"> x\,dx \\</span></code></li><li class="L5"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="iwsm">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-644-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 30.347ex; height: 19.112ex; vertical-align: -9.035ex; margin: 1px 0px;" viewBox="0 -4357.6325111842 13089.016121274655 8215.2650223684"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(1743,3322)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-61" x="708" y="0"></use><use xlink:href="#MJMAIN-64" x="1209" y="0"></use></g><g transform="translate(511,502)"><use transform="scale(1.2)" xlink:href="#MJMATHI-65"></use><g transform="translate(559,485)"><use transform="scale(0.848528137423857)" xlink:href="#MJMATHI-69"></use><g transform="translate(413,0)"><rect stroke="none" width="464" height="60" x="0" y="146"></rect><use transform="scale(0.6000000000000001)" xlink:href="#MJMATHI-3C0" x="99" y="562"></use><use transform="scale(0.6000000000000001)" xlink:href="#MJMAIN-32" x="136" y="-629"></use></g></g><g transform="translate(2657,0)"><use transform="scale(1.2)" xlink:href="#MJMATHI-65"></use><g transform="translate(559,485)"><g transform="translate(120,0)"><rect stroke="none" width="671" height="60" x="0" y="146"></rect><g transform="translate(60,337)"><use transform="scale(0.6000000000000001)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.6000000000000001)" xlink:href="#MJMATHI-3C0" x="345" y="0"></use></g><use transform="scale(0.6000000000000001)" xlink:href="#MJMAIN-32" x="309" y="-629"></use></g></g></g></g><g transform="translate(0,-2413)"><use xlink:href="#MJSZ2-222B"></use><g transform="translate(1180,1088)"><rect stroke="none" width="406" height="60" x="0" y="146"></rect><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-3C0" x="119" y="672"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="156" y="-621"></use></g><g transform="translate(556,-899)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212"></use><g transform="translate(670,0)"><rect stroke="none" width="406" height="60" x="0" y="146"></rect><use transform="scale(0.5000000000000001)" xlink:href="#MJMATHI-3C0" x="119" y="672"></use><use transform="scale(0.5000000000000001)" xlink:href="#MJMAIN-32" x="156" y="-621"></use></g></g><g transform="translate(2020,0)"><use xlink:href="#MJMAIN-73"></use><use xlink:href="#MJMAIN-69" x="394" y="0"></use><use xlink:href="#MJMAIN-6E" x="673" y="0"></use></g><use xlink:href="#MJMATHI-78" x="3416" y="0"></use><use xlink:href="#MJMATHI-64" x="4155" y="0"></use><use xlink:href="#MJMATHI-78" x="4679" y="0"></use></g></g><g transform="translate(6636,0)"><g transform="translate(1474,3322)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-65" x="708" y="0"></use><use xlink:href="#MJMAIN-74" x="1153" y="0"></use><use xlink:href="#MJMAIN-74" x="1542" y="0"></use><use xlink:href="#MJMAIN-65" x="1932" y="0"></use><use xlink:href="#MJMAIN-72" x="2376" y="0"></use></g><g transform="translate(1714,502)"><use transform="scale(1.2)" xlink:href="#MJMATHI-65"></use><g transform="translate(559,412)"><use transform="scale(0.848528137423857)" xlink:href="#MJMATHI-69"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMATHI-3C0" x="345" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-2F" x="919" y="0"></use><use transform="scale(0.848528137423857)" xlink:href="#MJMAIN-32" x="1419" y="0"></use></g></g><g transform="translate(0,-2413)"><use xlink:href="#MJSZ2-222B"></use><g transform="translate(1060,1088)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3C0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2F" x="573" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1074" y="0"></use></g><g transform="translate(556,-899)"><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2212"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-3C0" x="778" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-2F" x="1352" y="0"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="1852" y="0"></use></g><g transform="translate(2486,0)"><use xlink:href="#MJMAIN-73"></use><use xlink:href="#MJMAIN-69" x="394" y="0"></use><use xlink:href="#MJMAIN-6E" x="673" y="0"></use></g><use xlink:href="#MJMATHI-78" x="3883" y="0"></use><use xlink:href="#MJMATHI-64" x="4622" y="0"></use><use xlink:href="#MJMATHI-78" x="5145" y="0"></use></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="12755" transform="translate(0,2701)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-644">\begin{array}{cc}
    \mathrm{Bad} & \mathrm{Better} \\
    \hline \\
    \large e^{i\frac{\pi}2} \quad e^{\frac{i\pi}2}& \large e^{i\pi/2} \\[2ex]
    \int_{-\frac\pi2}^\frac\pi2 \sin x\,dx & \int_{-\pi/2}^{\pi/2}\sin x\,dx \\
\end{array}</script></li>
</ul><p data-anchor-id="uxfh">The <code>|</code> symbol has the wrong spacing when it is used as a divider, for example in set comprehensions. Use <code>\mid</code> instead:</p><p data-anchor-id="4cfd">使用 <code>|</code> 符号作为分隔符时会产生错误的间距，因此在需要分隔时最好使用 <code>\mid</code> 来代替它。</p><ul data-anchor-id="07pd">
<li>例子:</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="uhsx" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Bad</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="typ">Better</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \{x</span><span class="pun">|</span><span class="pln">x</span><span class="pun">^</span><span class="lit">2</span><span class="pln">\in\Bbb Z\} </span><span class="pun">&amp;</span><span class="pln"> \{x\mid x</span><span class="pun">^</span><span class="lit">2</span><span class="pln">\in\Bbb Z\} \\</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="hbvf">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-645-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 28.378ex; height: 9.266ex; vertical-align: -4.17ex; margin: 1px 0px;" viewBox="0 -2253.0947968737382 12212.441790623383 4006.1895937474765"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(1501,1217)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-61" x="708" y="0"></use><use xlink:href="#MJMAIN-64" x="1209" y="0"></use></g><g transform="translate(0,-1267)"><use xlink:href="#MJMAIN-7B"></use><use xlink:href="#MJMATHI-78" x="500" y="0"></use><use xlink:href="#MJMAIN-7C" x="1073" y="0"></use><g transform="translate(1351,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><use xlink:href="#MJMAIN-2208" x="2655" y="0"></use><use xlink:href="#MJAMS-5A" x="3600" y="0"></use><use xlink:href="#MJMAIN-7D" x="4268" y="0"></use></g></g><g transform="translate(6153,0)"><g transform="translate(1277,1217)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-65" x="708" y="0"></use><use xlink:href="#MJMAIN-74" x="1153" y="0"></use><use xlink:href="#MJMAIN-74" x="1542" y="0"></use><use xlink:href="#MJMAIN-65" x="1932" y="0"></use><use xlink:href="#MJMAIN-72" x="2376" y="0"></use></g><g transform="translate(0,-1267)"><use xlink:href="#MJMAIN-7B"></use><use xlink:href="#MJMATHI-78" x="500" y="0"></use><use xlink:href="#MJMAIN-2223" x="1350" y="0"></use><g transform="translate(1907,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="583"></use></g><use xlink:href="#MJMAIN-2208" x="3211" y="0"></use><use xlink:href="#MJAMS-5A" x="4156" y="0"></use><use xlink:href="#MJMAIN-7D" x="4824" y="0"></use></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="11878" transform="translate(0,596)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-645">\begin{array}{cc}
    \mathrm{Bad} & \mathrm{Better} \\
    \hline \\
    \{x|x^2\in\Bbb Z\} & \{x\mid x^2\in\Bbb Z\} \\
\end{array}</script></li>
</ul><p data-anchor-id="ioih">For double and triple integrals, don't use <code>\int\int</code> or <code>\int\int\int</code>. Instead use the special forms <code>\iint</code> and <code>\iiint</code>:</p><p data-anchor-id="zgtu">使用多重积分符号时，不要多次使用 <code>\int</code> 来声明，直接使用 <code>\iint</code> 来表示<strong>二重积分</strong>，使用 <code>\iiint</code> 来表示<strong>三重积分</strong>。 <br>
个人补充：在表示面积分和体积分时下标建议使用 <code>\boldsymbol{S}</code> 和 <code>\boldsymbol{V}</code> 符号；对于多维函数的超体积，可使用 <code>\idotsint</code>，如下面的例子所示。</p><ul data-anchor-id="ufe8">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="s9i8" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Bad</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="typ">Better</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \int\int_S f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln">\,dy\,dx </span><span class="pun">&amp;</span><span class="pln"> \iint_</span><span class="pun">{</span><span class="pln">\boldsymbol</span><span class="pun">{</span><span class="pln">S</span><span class="pun">}}</span><span class="pln"> f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln">\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">y\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x \\</span></code></li><li class="L4"><code><span class="pln">    \int\int\int_V f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln">\,dz\,dy\,dx </span><span class="pun">&amp;</span><span class="pln"> \iiint_</span><span class="pun">{</span><span class="pln">\boldsymbol</span><span class="pun">{</span><span class="pln">V</span><span class="pun">}}</span><span class="pln"> f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln">\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">z\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">y\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x \\</span><span class="pun">[</span><span class="lit">3ex</span><span class="pun">]</span></code></li><li class="L5"><code><span class="pln">    \hline \\</span></code></li><li class="L6"><code><span class="pln">    \text</span><span class="pun">{多重积分示例}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \idotsint_</span><span class="pun">{</span><span class="pln">\boldsymbol</span><span class="pun">{</span><span class="pln">D</span><span class="pun">}}</span><span class="pln"> f</span><span class="pun">(</span><span class="pln">x_1</span><span class="pun">,</span><span class="pln">x_2</span><span class="pun">,</span><span class="pln">\,\cdots\, </span><span class="pun">,</span><span class="pln">x_n</span><span class="pun">)</span><span class="pln">\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x_1\cdots</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x_n</span></code></li><li class="L7"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="a52o">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-646-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 63.938ex; height: 28.263ex; vertical-align: -13.668ex; margin: 1px 0px;" viewBox="0 -6337.4787032949 27553.15569441225 12174.9574065898"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(3667,5302)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-61" x="708" y="0"></use><use xlink:href="#MJMAIN-64" x="1209" y="0"></use></g><g transform="translate(1178,2340)"><use xlink:href="#MJSZ2-222B"></use><g transform="translate(1111,0)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-53" x="787" y="-1272"></use></g><use xlink:href="#MJMATHI-66" x="2390" y="0"></use><use xlink:href="#MJMAIN-28" x="2941" y="0"></use><use xlink:href="#MJMATHI-78" x="3330" y="0"></use><use xlink:href="#MJMAIN-29" x="3903" y="0"></use><use xlink:href="#MJMATHI-64" x="4459" y="0"></use><use xlink:href="#MJMATHI-79" x="4982" y="0"></use><use xlink:href="#MJMATHI-64" x="5647" y="0"></use><use xlink:href="#MJMATHI-78" x="6170" y="0"></use></g><g transform="translate(0,-336)"><use xlink:href="#MJSZ2-222B"></use><use xlink:href="#MJSZ2-222B" x="1111" y="-1"></use><g transform="translate(2222,0)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-56" x="787" y="-1272"></use></g><use xlink:href="#MJMATHI-66" x="3589" y="0"></use><use xlink:href="#MJMAIN-28" x="4140" y="0"></use><use xlink:href="#MJMATHI-78" x="4529" y="0"></use><use xlink:href="#MJMAIN-29" x="5102" y="0"></use><use xlink:href="#MJMATHI-64" x="5658" y="0"></use><use xlink:href="#MJMATHI-7A" x="6181" y="0"></use><use xlink:href="#MJMATHI-64" x="6816" y="0"></use><use xlink:href="#MJMATHI-79" x="7340" y="0"></use><use xlink:href="#MJMATHI-64" x="8004" y="0"></use><use xlink:href="#MJMATHI-78" x="8528" y="0"></use></g><g transform="translate(2156,-4703)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">多</text><g transform="translate(797,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">重</text></g><g transform="translate(1595,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">积</text></g><g transform="translate(2393,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">分</text></g><g transform="translate(3191,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">示</text></g><g transform="translate(3989,0)"><text font-family="STIXGeneral,'Arial Unicode MS',serif" font-style="" font-weight="" stroke="none" transform="scale(49.87111969111969) matrix(1 0 0 -1 0 0)">例</text></g></g></g><g transform="translate(10485,0)"><g transform="translate(6782,5302)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-65" x="708" y="0"></use><use xlink:href="#MJMAIN-74" x="1153" y="0"></use><use xlink:href="#MJMAIN-74" x="1542" y="0"></use><use xlink:href="#MJMAIN-65" x="1932" y="0"></use><use xlink:href="#MJMAIN-72" x="2376" y="0"></use></g><g transform="translate(5029,2340)"><use xlink:href="#MJSZ2-222C"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHBI-53" x="1533" y="-1272"></use><use xlink:href="#MJMATHI-66" x="1856" y="0"></use><use xlink:href="#MJMAIN-28" x="2406" y="0"></use><use xlink:href="#MJMATHI-78" x="2796" y="0"></use><use xlink:href="#MJMAIN-29" x="3368" y="0"></use><use xlink:href="#MJMAIN-64" x="3925" y="0"></use><use xlink:href="#MJMATHI-79" x="4481" y="0"></use><use xlink:href="#MJMAIN-64" x="5145" y="0"></use><use xlink:href="#MJMATHI-78" x="5702" y="0"></use></g><g transform="translate(4118,-336)"><use xlink:href="#MJSZ2-222D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHBI-56" x="2252" y="-1272"></use><use xlink:href="#MJMATHI-66" x="2486" y="0"></use><use xlink:href="#MJMAIN-28" x="3036" y="0"></use><use xlink:href="#MJMATHI-78" x="3426" y="0"></use><use xlink:href="#MJMAIN-29" x="3998" y="0"></use><use xlink:href="#MJMAIN-64" x="4554" y="0"></use><use xlink:href="#MJMATHI-7A" x="5111" y="0"></use><use xlink:href="#MJMAIN-64" x="5746" y="0"></use><use xlink:href="#MJMATHI-79" x="6302" y="0"></use><use xlink:href="#MJMAIN-64" x="6967" y="0"></use><use xlink:href="#MJMATHI-78" x="7523" y="0"></use></g><g transform="translate(0,-4703)"><use xlink:href="#MJSZ2-222B"></use><use xlink:href="#MJMAIN-22EF" x="1111" y="0"></use><g transform="translate(2450,0)"><use xlink:href="#MJSZ2-222B"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHBI-44" x="787" y="-1272"></use></g><use xlink:href="#MJMATHI-66" x="3937" y="0"></use><use xlink:href="#MJMAIN-28" x="4487" y="0"></use><g transform="translate(4877,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-2C" x="5903" y="0"></use><g transform="translate(6348,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-32" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-2C" x="7375" y="0"></use><use xlink:href="#MJMAIN-22EF" x="7986" y="0"></use><use xlink:href="#MJMAIN-2C" x="9492" y="0"></use><g transform="translate(9937,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-29" x="11035" y="0"></use><use xlink:href="#MJMAIN-64" x="11591" y="0"></use><g transform="translate(12147,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMAIN-31" x="809" y="-213"></use></g><use xlink:href="#MJMAIN-22EF" x="13340" y="0"></use><use xlink:href="#MJMAIN-64" x="14679" y="0"></use><g transform="translate(15236,0)"><use xlink:href="#MJMATHI-78"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-6E" x="809" y="-213"></use></g></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="27219" transform="translate(0,4681)"></line><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="27219" transform="translate(0,-2112)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-646">
\require{AMSmath}
\begin{array}{cc}
    \mathrm{Bad} & \mathrm{Better} \\
    \hline \\
    \int\int_S f(x)\,dy\,dx & \iint_{\boldsymbol{S}} f(x)\,{\rm d}y\,{\rm d}x \\
    \int\int\int_V f(x)\,dz\,dy\,dx & \iiint_{\boldsymbol{V}} f(x)\,{\rm d}z\,{\rm d}y\,{\rm d}x \\[3ex]
    \hline \\
    \text{多重积分示例} & \idotsint_{\boldsymbol{D}} f(x_1,x_2,\,\cdots\, ,x_n)\,{\rm d}x_1\cdots{\rm d}x_n
\end{array}
</script></li>
</ul><p data-anchor-id="omgp">Use <code>\,</code>, to insert a thin space before differentials; without this <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-647-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 4.749ex; height: 2.201ex; vertical-align: -0.695ex; margin: 1px 0px;" viewBox="0 -704.0516853480245 2066.5 940.380370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMATHI-54"></use><g transform="translate(564,0)"><use xlink:href="#MJMATHI-45" x="0" y="-216"></use></g><use xlink:href="#MJMATHI-58" x="1214" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-647">\TeX</script> will mash them together:</p><p data-anchor-id="xrpk">使用多重积分时，在被积变量后加入 <code>\,</code> （或在微分符号 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-648-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 1.274ex; height: 1.737ex; vertical-align: -0.116ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 556.5 748.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-64"></use></g></svg></span><script type="math/tex" id="MathJax-Element-648">{\rm d}</script> 之前）来插入一个小的间距，否则各种被积变量将会挤成一团。注意比较 <span class="MathJax_Preview"></span><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-649-Frame" role="textbox" aria-readonly="true"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 7.413ex; height: 2.201ex; vertical-align: -0.579ex; margin: 1px 0px;" viewBox="0 -716.0516853480245 3208 942.103370696049"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><use xlink:href="#MJMAIN-64"></use><use xlink:href="#MJMATHI-7A" x="556" y="0"></use><use xlink:href="#MJMAIN-64" x="1025" y="0"></use><use xlink:href="#MJMATHI-79" x="1581" y="0"></use><use xlink:href="#MJMAIN-64" x="2079" y="0"></use><use xlink:href="#MJMATHI-78" x="2635" y="0"></use></g></svg></span><script type="math/tex" id="MathJax-Element-649">{\rm d}z{\rm d} y{\rm d} x</script> 的不同。</p><ul data-anchor-id="vvsj">
<li>例子：</li>
</ul><div class="md-section-divider"></div><pre class="prettyprint linenums prettyprinted" data-anchor-id="lnhs" style=""><ol class="linenums"><li class="L0"><code><span class="pln">\begin</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}{</span><span class="pln">cc</span><span class="pun">}</span></code></li><li class="L1"><code><span class="pln">    \mathrm</span><span class="pun">{</span><span class="typ">Bad</span><span class="pun">}</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln"> \mathrm</span><span class="pun">{</span><span class="typ">Better</span><span class="pun">}</span><span class="pln"> \\</span></code></li><li class="L2"><code><span class="pln">    \hline \\</span></code></li><li class="L3"><code><span class="pln">    \iiint_V f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">){</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">z </span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">y </span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x </span><span class="pun">&amp;</span><span class="pln"> \iiint_</span><span class="pun">{</span><span class="pln">\boldsymbol</span><span class="pun">{</span><span class="pln">V</span><span class="pun">}}</span><span class="pln"> f</span><span class="pun">(</span><span class="pln">x</span><span class="pun">)</span><span class="pln">\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">z\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">y\,</span><span class="pun">{</span><span class="pln">\rm d</span><span class="pun">}</span><span class="pln">x \\</span></code></li><li class="L4"><code><span class="pln">\end</span><span class="pun">{</span><span class="pln">array</span><span class="pun">}</span></code></li></ol></pre><ul data-anchor-id="1l5s">
<li>显示： <br>
<span class="MathJax_Preview"></span><div class="MathJax_SVG_Display" role="textbox" aria-readonly="true" style="text-align: center;"><span style="font-size: 100%; display: inline-block;" class="MathJax_SVG" id="MathJax-Element-290-Frame"><svg xmlns:xlink="http://www.w3.org/1999/xlink" style="width: 41.12ex; height: 11.931ex; vertical-align: -5.444ex; margin: 1px 0px;" viewBox="0 -2823.6380828613333 17728.26339896724 5147.2761657226665"><g stroke="black" fill="black" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g transform="translate(167,0)"><g transform="translate(384,0)"><g transform="translate(2873,1788)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-61" x="708" y="0"></use><use xlink:href="#MJMAIN-64" x="1209" y="0"></use></g><g transform="translate(0,-1174)"><use xlink:href="#MJSZ2-222D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHI-56" x="2252" y="-1272"></use><use xlink:href="#MJMATHI-66" x="2403" y="0"></use><use xlink:href="#MJMAIN-28" x="2953" y="0"></use><use xlink:href="#MJMATHI-78" x="3343" y="0"></use><use xlink:href="#MJMAIN-29" x="3915" y="0"></use><use xlink:href="#MJMAIN-64" x="4305" y="0"></use><use xlink:href="#MJMATHI-7A" x="4861" y="0"></use><use xlink:href="#MJMAIN-64" x="5330" y="0"></use><use xlink:href="#MJMATHI-79" x="5886" y="0"></use><use xlink:href="#MJMAIN-64" x="6384" y="0"></use><use xlink:href="#MJMATHI-78" x="6940" y="0"></use></g></g><g transform="translate(8898,0)"><g transform="translate(2663,1788)"><use xlink:href="#MJMAIN-42"></use><use xlink:href="#MJMAIN-65" x="708" y="0"></use><use xlink:href="#MJMAIN-74" x="1153" y="0"></use><use xlink:href="#MJMAIN-74" x="1542" y="0"></use><use xlink:href="#MJMAIN-65" x="1932" y="0"></use><use xlink:href="#MJMAIN-72" x="2376" y="0"></use></g><g transform="translate(0,-1174)"><use xlink:href="#MJSZ2-222D"></use><use transform="scale(0.7071067811865476)" xlink:href="#MJMATHBI-56" x="2252" y="-1272"></use><use xlink:href="#MJMATHI-66" x="2486" y="0"></use><use xlink:href="#MJMAIN-28" x="3036" y="0"></use><use xlink:href="#MJMATHI-78" x="3426" y="0"></use><use xlink:href="#MJMAIN-29" x="3998" y="0"></use><use xlink:href="#MJMAIN-64" x="4554" y="0"></use><use xlink:href="#MJMATHI-7A" x="5111" y="0"></use><use xlink:href="#MJMAIN-64" x="5746" y="0"></use><use xlink:href="#MJMATHI-79" x="6302" y="0"></use><use xlink:href="#MJMAIN-64" x="6967" y="0"></use><use xlink:href="#MJMATHI-78" x="7523" y="0"></use></g></g><line stroke-width="30.08" x1="0" y2="15.038764011018364" y1="15.038764011018364" x2="17394" transform="translate(0,1167)"></line></g></g></svg></span></div><script type="math/tex; mode=display" id="MathJax-Element-290">\begin{array}{cc}
    \mathrm{Bad} & \mathrm{Better} \\
    \hline \\
    \iiint_V f(x){\rm d}z {\rm d}y {\rm d}x & \iiint_{\boldsymbol{V}} f(x)\,{\rm d}z\,{\rm d}y\,{\rm d}x \\
\end{array}</script></li>
</ul><hr><p data-anchor-id="73fa">感谢您花费时间阅读这份指导手册，本手册内容可能有疏漏之处，欢迎更改指正。 <br>
更多语法请参见：<a href="https://www.zybuluo.com/mdeditor?url=https://www.zybuluo.com/static/editor/md-help.markdown" target="_blank">Cmd Markdown 简明语法手册</a>，<a href="https://www.zybuluo.com/mdeditor?url=https://www.zybuluo.com/static/editor/md-help.markdown#cmd-markdown-%E9%AB%98%E9%98%B6%E8%AF%AD%E6%B3%95%E6%89%8B%E5%86%8C" target="_blank">Cmd Markdown 高阶语法手册</a>。 <br>
祝您记录、阅读、分享愉快！</p><p data-anchor-id="ckqh">Drafted &amp; Translated by <a href="https://ericp.cn/" target="_blank">Eric P.</a> <br>
2015-10-02</p></div>
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</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wy08">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ovqq">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="obcl">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ee6w">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="w2j3">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4yrl">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9zmb">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dsen">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="uw6t">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="1uu9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="zkqn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="duxx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="28bv">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="519c">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="sxt6">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="zyyi">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ji3v">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="rpkx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ap2i">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="673w">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="nzkb">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9qp8">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="aw6v">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="fbfy">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4i99">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dfri">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dypt">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="7eh1">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="eubq">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="f4bn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4r8v">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xwe2">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4e1z">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="g0pu">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="0vhx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="qros">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="rjj2">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="51r4">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="s9zi">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4azi">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="djqg">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="f40v">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="bxs9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="p9yl">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="0x2o">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="irgf">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dmxe">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="h4nw">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="r2fe">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xbwc">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="6ebx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="zaof">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="h71b">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="mwv7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="oxty">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="n0y0">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="11n8">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9dgd">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="n3o5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="5fba">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="p1o7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="21b5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="z5wl">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="x2ra">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xlok">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3p64">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dgcn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="25dx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="m5y7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="yklp">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="h8qz">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="qyxx">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="h32b">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="o3dh">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="t79a">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="jyn2">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="736g">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="8fch">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cs1i">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="mp6y">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9tks">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="rah1">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ufey">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="akr8">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="v1i7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="rofh">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="g1ve">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xq8q">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="faw6">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wn6w">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="fcmm">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="d177">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="7ls5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9ot5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="mrl3">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="zyfu">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="no73">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="qc0c">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3k35">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="f2iz">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="rtgm">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="zcjy">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="pwnt">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ywn9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ugiv">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="oc4n">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="mnd6">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="b1y6">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="2au2">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="45cf">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wixv">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3apb">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="lt1d">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="26fi">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="2xjw">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="gfib">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="q5ey">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xb9y">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="l49n">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="da9h">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="v2mn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="hrpo">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="q2sz">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cb04">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="fc7a">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ds9v">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="avna">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="e7ru">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ja5b">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9p9r">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="oa31">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cesu">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="o7ux">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="5p31">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="fcuh">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="r0gm">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="5l2i">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="urx0">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="dh4m">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="2zh9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="th3d">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="076s">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="hase">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="h28u">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="z0lq">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3jxp">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="k54o">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="co6u">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="k7g5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="9c0w">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="am0j">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="uveb">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="49qr">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="a7j9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4fkl">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="1p58">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="buwm">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xgbs">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ux2x">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="70fu">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="tl5w">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="22a0">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3376">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xqet">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xnx3">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="nfrf">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="up6h">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wcx9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ggfn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="7z1b">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="enub">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cjh8">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wr3j">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ni8n">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="isn7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="xbhe">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="k3g0">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="pbwm">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="miyw">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cns5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="aoe0">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="kri2">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="evu9">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="vvo5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="8o6t">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="2fx4">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="3cyz">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="whqn">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="wbbo">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="kd71">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="mial">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="qr7f">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="4aa4">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="ezf7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="1xc7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="b3dq">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="aiuv">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="cao7">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="0j7i">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="546y">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="z5ah">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="im2g">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="qxz1">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="nyv5">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="v60k">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="289u">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
        <span class="remark-count"></span>
    </span>
</div><div class="remark-icon unselectable remark-icon-empty" style="display: none;" data-anchor-id="voes">
    <span class="icon-stack">
        <i class="glyph-comment"></i>
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                <h3>内容目录</h3>
                <hr>
                <div class="table-of-contents"><div class="toc">
<ul>
<li><a href="#cmd-markdown-公式指导手册">Cmd Markdown 公式指导手册</a></li>
<li><a href="#一公式使用参考">一、公式使用参考</a><ul>
<li><a href="#1如何插入公式">1．如何插入公式</a></li>
<li><a href="#2如何输入上下标">2．如何输入上下标</a></li>
<li><a href="#3如何输入括号和分隔符">3．如何输入括号和分隔符</a></li>
<li><a href="#4如何输入分数">4．如何输入分数</a></li>
<li><a href="#5如何输入开方">5．如何输入开方</a></li>
<li><a href="#6如何输入省略号">6．如何输入省略号</a></li>
<li><a href="#7如何输入向量">7．如何输入向量</a></li>
<li><a href="#8如何输入积分">8．如何输入积分</a></li>
<li><a href="#9如何输入极限运算">9．如何输入极限运算</a></li>
<li><a href="#10如何输入累加累乘运算">10．如何输入累加、累乘运算</a></li>
<li><a href="#11如何输入希腊字母">11．如何输入希腊字母</a></li>
<li><a href="#12如何输入其它特殊字符">12．如何输入其它特殊字符</a><ul>
<li><a href="#1关系运算符">(1)．关系运算符</a></li>
<li><a href="#2集合运算符">(2)．集合运算符</a></li>
<li><a href="#3对数运算符">(3)．对数运算符</a></li>
<li><a href="#4三角运算符">(4)．三角运算符</a></li>
<li><a href="#5微积分运算符">(5)．微积分运算符</a></li>
<li><a href="#6逻辑运算符">(6)．逻辑运算符</a></li>
<li><a href="#7戴帽符号">(7)．戴帽符号</a></li>
<li><a href="#8连线符号">(8)．连线符号</a></li>
<li><a href="#9箭头符号">(9)．箭头符号</a></li>
</ul>
</li>
<li><a href="#13如何进行字体转换">13．如何进行字体转换</a></li>
<li><a href="#14如何高亮一行公式">14．如何高亮一行公式</a></li>
<li><a href="#15大括号和行标的使用">15．大括号和行标的使用</a></li>
<li><a href="#16其它命令">16．其它命令</a><ul>
<li><a href="#1定义新的运算符-operatorname">(1)．定义新的运算符 \operatorname</a></li>
<li><a href="#2添加注释文字-text">(2)．添加注释文字 \text</a></li>
<li><a href="#3在字符间加入空格">(3)．在字符间加入空格</a></li>
<li><a href="#4更改文字颜色-color">(4)．更改文字颜色 \color</a></li>
<li><a href="#5添加删除线">(5)．添加删除线</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#二矩阵使用参考">二、矩阵使用参考</a><ul>
<li><a href="#1如何输入无框矩阵">1．如何输入无框矩阵</a></li>
<li><a href="#2如何输入边框矩阵">2．如何输入边框矩阵</a></li>
<li><a href="#3如何输入带省略符号的矩阵">3．如何输入带省略符号的矩阵</a></li>
<li><a href="#4如何输入带分割符号的矩阵">4．如何输入带分割符号的矩阵</a></li>
<li><a href="#5如何输入行中矩阵">5．如何输入行中矩阵</a></li>
</ul>
</li>
<li><a href="#三方程式序列使用参考">三、方程式序列使用参考</a><ul>
<li><a href="#1如何输入一个方程式序列">1．如何输入一个方程式序列</a></li>
<li><a href="#2在一个方程式序列的每一行中注明原因">2．在一个方程式序列的每一行中注明原因</a></li>
</ul>
</li>
<li><a href="#四条件表达式使用参考">四、条件表达式使用参考</a><ul>
<li><a href="#1如何输入一个条件表达式">1．如何输入一个条件表达式</a></li>
<li><a href="#2如何输入一个左侧对齐的条件表达式">2．如何输入一个左侧对齐的条件表达式</a></li>
<li><a href="#3如何使条件表达式适配行高">3．如何使条件表达式适配行高</a></li>
</ul>
</li>
<li><a href="#五数组与表格使用参考">五、数组与表格使用参考</a><ul>
<li><a href="#1如何输入一个数组或表格">1．如何输入一个数组或表格</a></li>
<li><a href="#2如何输入一个嵌套的数组或表格">2．如何输入一个嵌套的数组或表格</a></li>
<li><a href="#3如何输入一个方程组">3．如何输入一个方程组</a></li>
</ul>
</li>
<li><a href="#六连分数使用参考">六、连分数使用参考</a><ul>
<li><a href="#1如何输入一个连分式">1．如何输入一个连分式</a></li>
</ul>
</li>
<li><a href="#七交换图表使用参考">七、交换图表使用参考</a><ul>
<li><a href="#1如何输入一个交换图表">1．如何输入一个交换图表</a></li>
</ul>
</li>
<li><a href="#八一些特殊的注意事项">八、一些特殊的注意事项</a></li>
</ul>
</div>
</div>
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